Go-To's for Free to Affordable Resources
Icons
- Android Material Design Icon Set (Free)
- The Noun Project (Free with attribution or very affordable)
- Icon Monstr (Free)
Photos
- Flickr (Creative Commons images are free to use with attribution)
- Pixabay (Free)
- The Stocks (Free)
- Wikimedia Commons (Free)
Music
- Free Music Archive (Free)
UI Mockups
- Creative Market (Affordable)