According to a recent survey, 35% of Americans say lack of income is the main reason they aren’t saving money. So If you’re already living frugally but are struggling to save, here are some easy ways to add income without adding too much work:

42. Sell Your Extra Stuff

save money on your new clothes, housewares, and electronics you purchase by selling your old ones. Check your closet for clothes you haven’t worn in months and for old electronics. There are many places to sell unwanted items online, including eBay, Craigslist, or Facebook Marketplace. You can also hold a traditional yard sale if you want to sell in bulk.

43. Rent Out Equipment

Why pay for your tools or equipment when they can pay for themselves? Apps like ToolRent or PeerRenters let you get paid for sharing items like drills, whiskers, and cameras with the community. Consider listing anything you have that has a specialty use.

44. Rent Out an Extra Room

You can reduce your own housing host by adding a short-term resident. List your spare room, or even couch on an app like AirBnB to save money on your rent or mortgage.

45. Sell Your Parking Spot

If you live in an area where parking can be expensive or hard to come by, consider renting out your spot to people during the day while you’re at work. Use this money to save on your own car’s expenses and parking.

46. Trade Gigs With a Neighbor

While not monetary income, you can earn favors by trading jobs with your neighbors or friends. For example, you can take turns babysitting your friend’s kids, or watch your neighbor’s pets while they’re out in exchange for them mowing your lawn.

47. Monetize Your Passion

Make your free time earn you money as well. If there’s a hobby or skill you do for fun, consider selling the fruits of your labor. If you love photography, try selling photos on stock websites, or if you find yourself writing at the end of the day, try starting a blog.

48. Become a Mystery Shopper

You can save money on services, meals, and experiences in exchange for completing honest feedback to companies. This can be especially effective if you use it to do things you’d normally do.

49. Work at Your Favorite Place

If you already spend a lot of time at soccer games or at the bar down the street, become a referee or bartender on the weekends and you will save money on game tickets and drinks. Plus, it won’t won’t feel like work.

50. Consider Signing up for Cash Back Offers

Take advantage of the fact that some major credit cards offer cash back on purchases. You can also use a service like Ebates, which partners with retailers to give you cash back. Keep in mind that these services are designed to motivate you to buy things you wouldn’t normally buy, so use caution.

51. Pet-Sit

If you’re an animal lover, getting paid to play with other people’s animals could be an excellent option for you, and help you save additional money on entertainment. Depending on the owners’ needs, you may even be able to keep their pet at your home, cutting down on the work for you. Apps like Rover make it easy to connect with owners.