Download a VISUAL file manager, seeing your project in chunks letting you focus on the big areas makes it easy to see where to start. Also see if there are any

Download a VISUAL file manager, seeing your project in chunks letting you focus on the big areas makes it easy to see where to start. Also see if there are any tools for your environment specifically made to find issues, unused assets and so on. This allowed me to easily remove 200+ unused images yesterday. All in all I removed and compressed 18mb of unused images and files and counting. If anyone is wondering, since it is related to iOS as well, I used Slender. Highly recommended but use with care, since it has false positives and false negatives. I double checked almost all files it found.