AppHarbor (like Heroku) doesn't allow you to save uploaded files or images. I need to offload this somewhere and I have no idea what services exist for this purpose.
I've looked into FilePicker.io but they display a tacky branding image in their uploader and to remove that branding you have to pay a large sum of money.
Any suggestions on how to approach this problem? What is the modus operandi with applications that need file uploads that are hosted on PaaS?