Using the treadmill sounds like a good idea, even if its just for half an hour here or there. If you start to get bored with the treadmill, save up for a cross trainer or something like that.

I do cardio every day.  An hour on the elliptical while listening to podcasts.  I used to be huge into lifting now not so much, though I'll lift every couple of months or so.  

The key is not to sleep ever.

If you can run 4 miles in 25 mins or so...you'll be alright. 

I cycle to work every single day, be it sunny or rainy. So yeah, I cycle about 15 km a day :)

You can always work out at your house too. I usually go for a run around my neighborhood for about 45 minutes then every other day I alternate between push ups and bicycle curls. It doesn't make me huge but it at least keeps me fit.

  Peace out,   MD. "

" @oraknabo: you lose weight through your diet "

Another thing to try is mixing Family time with Exercise time.

I'm a Jersey boy so  GTL 
 GYM. TAN. LAUNDRY.

" I'm surprised no one has mentioned the obvious answer. Get rid of the kid. "

do little exercises so you have time for the family. go to dick's sporting good or a sport store and buy a set of dumbbells. you can do a lot of exercises with them. it's what i do and i'm fairly muscler.

Put your treadmill outside, and run on it. 
 
When inside, and your kid is around, challenge him/her to a first-to-ten push up race.

Jiu-Jitsu, Kickboxing, Krav Maga and Volleyball keeps me as fit as I would ever need to be.

Food doesint affect my weight in anyway.

How close is your work? You could Jog or Cycle there and back everyday? Sit ups, Push ups etc when your sitting around not actively doing something will all help.

I'm surprised no one has mentioned the obvious answer. Get rid of the kid.

Well i spend all day at uni from getting up at 6 in the morning til usually about 3 i the avo and during my time there i ocasionally play table tennis and when i find time i drive like 2 mins and go snowboarding and every other night i do some sit ups push ups  and other similar things. i eat like a horse and dont put on any weight and consider my self to be pretty fit. small but simple effective stuff

I started doing P90X back in May and running 2-3 times a week (nothing major just 2.5-3.5 miles)  
 
I'm not a big guy- just a scrawny nerdy dude, but if I can do P90X anybody can. Sounds like you're already capable of the sort of things P90X throws at you. The reason I recommend it is because you don't need much to do the routines. No gym required and the longest routine I think is Yoga X at 90 minutes. The shortest is Ab Ripper X at 15 minutes. The point being you don't need a lot of time to do the program. Hope this helps.

my suggestion is that if you could find an hour a day to gym, rather than 2 or so like you said you used to do, and if you could do that each week day, that would be very efficient exercise.

" @mylifeforAiur said:

" I sit in front of computers all day, whether I'm at home or not. ^-^  "

lol. this "

Just do a few push-ups and pull-ups every-other day. As long as you only eat when you really need to, you should be fine. Maybe go for a run 2 or 3 mornings a week.

" dont be a fatty, go to the gym.  You will still have time for gaming. "

Do you have a TV in front of the treadmill? Try putting gaming set up in front, put treadmill on slowest speed.

I just don't care about myself, or my health, so I don't worry about that kind of thing, however seeing as you do I would suggest things like: 

• Try having weights at your desk when at work, or gaming, so that when you are waiting for stuff to happen you can do arm curls and the such. You may not notice any immediate "burn" as they call it, but if you do it enough throughout the day I would imagine it would be the same as one long session- or at least more then what you are doing now.
• If they allow it, try having an exercise ball as your seat at work or when at home and gaming. That way you work on your abdomen while you game/work.
• Walk/bike instead of driving when you can. If you need to go to the store down the road to get milk/bread/eggs/booze try walking or biking there instead of driving.
• I know you said you don't want to, but take 20-30 min every few days from your family/game time and just go do something. You will gain the time back in the years you will add to your life by being healthy. If you are worried about less time with one thing, try alternating between taking time from gaming one day and family the other.

Bench press your kid, do some reps, play with your kid run around with him, there has to be like 50 ways to get exercise when you have a kid you can read about in women/family magazines.

I've lost 20 pounds by...doing nothing. Got almost no money, so kinda just been surviving off weird things, like croutons, healthier than chips and taste better, so if you want to lose weight, just be dirt poor :D

I just ride on an exercise bike while watching TV.

I walk around 2 miles a day and do as many crunches as I can before bed. This keeps me fit enough.

dont be a fatty, go to the gym.  You will still have time for gaming.

Is this the part where i pimp my fitness blogs again?

Working on getting fit, but not great at it.

I've never been a fan of the gym. For a good while now, I've just been working with dumbbells, barbells, and a bench for equipment. Most of my work is done with dumbbells (no strength-imbalances, more consistent core work-out) and free body-weight. I've always found that, since my workout is all at home, it becomes far more difficult to make excuses and just say "I'll skip it for today".

Get yourself a farm and start riffling through pig & cow shit cowboy, It's gonna get ya in shape in no time.

I have a different suggestion, maybe enroll in a mixed martial art. You will have a good workout and learn useful skills at the same time.

put kid on treadmill, set treadmill to 10, watch what happens for the lulz. Lol just kidding. Do you go to the Ymca? if you do you could always take your family and you and your wife can work out while your kid is in day care, family time solved.

do push ups or something.

4:20 here, son.

I walk/bike everywhere I need to be, take walks and jogs twice everyday and when situation permits I take long bike rides to cities closeby.
Next to that I think you have to lose what you gain.
So don't drive to the macdonalds, but walk or jog. 
 
Works for me...

I don't have a kid, so I have a lot of time on my hands. I got to school tuesdays wednesdays and thursdays. Work every other weekend, so that leaves a lot of time for working out, and playing games. I only work out twice a week because my spotter works a lot.

You don't need to be a total gym rat to be healthy.  Do some exercises in the morning and/or at night.  You don't have to do a lot or for that long.

I spend 80% of my awake time at a computer, but in the past year I started walking to work. I walk at least 2 miles every day and it hasn't changed my weight a bit in a year's time.

If you're looking to get in more cardio in your daily routine, I'd definitely would start with the treadmill, 30 minutes of interval training 3-4 times a week for 3 months will make a world of a difference. Or if you want to tone/build muscle while you shed a few pounds then you should go on Youtube.com and look for some specific cardio exercise you feel you could do, a few examples would be jumping jacks, jumping rope, burpees, mountain climber, steam worker, roll ups and hindu push ups. If you're really serious about losing weight, I'd say put off playing games for a few months and in that time that you would normally be playing games, just practice your workout there.    

I run for 5 minutes to warm up, stretch then i hit the weights 5 days a week.