1) Payment receipts/tax software
Here's a pain: If I own a small business, I need something where I can forward all my payment receipts (GitHub, Constant Contact, web hosting, etc), tag it, parse it and at the end of the month/year/tax season, see where my money went. Great for taxes too because I always end up having to go back and add it all up myself. I know Mint can do this but I don't need all that bank crawling nonsense, I just wanna forward receipts to an email address (maybe using a Google filter to automate the process), and be able to view the numbers in some concise dashboard. BTW, if someone knows of any solution out there I'm missing, let me know 'cause this is a pain of mine.
2) Image resizing as a service. It can be a small pain to resize images using ImageMagick (installing it can be a headache), or any third party solutions. If the price is affordable, I wouldn't mind paying for image resizing as a service, image overlaying, or watermarking as a service. Maybe make it a few cent per API call.