Brainstorm. Just think, what would people find useful or something like that. Spend a bit of time thinking rather than asking for ideas.
This is an idea itself. Try to search on net what you can do with a budget under 20 bux to get some good return. Collect some info. From these info write an e-book and sell it.
or u can just open a review blog for PC, new games, game hack i have around 8000+ game cheat code u can use that for a boost in that blog
Actually, Google search helps a lot. Try to start with things you like the most. Then estimate costs. After filtering out the most expensive you should start trying inexpensive ideas one after another. Moreover, don’t stop even if you don’t succeed. Make a wish, but make a move! A lot of moves, sometimes
Go to a public library, wander around and browse through the books. When you find one that yells *read me* check it out and read it. As you read the book, make notes of the best information (in your own words) and put that up on a website. Use Adsense or YPN. Repeat. Repeat again. etc....