21. Put Ads On Your Car

If you’re someone who prides themselves on the appearance of your car – as many people do – this might not be for you. However, if that’s not something you’re overly concerned about – or if you’re absolutely desperate for cash – it could be a great idea.

You could make money by simply driving around in your car as usual, provided you’re willing to wrap the whole thing in a giant advert. Seriously, you could make anything from $300 to $900 per month. Look the details up and offer your services!