I do pretty much all my normal computer stuff involving an Amiga in some form or another.
Doing homework (to the point that I need an 8GB USB thumb-drive with UAE installed on it so I can print using the computer lab printer, instead of my Canon-bjc-210-US$40/ink cartridge)
For the online part of my homework requiring screenshots, I aquire such using TwinVNC, Cybergrab, and a window positioned strategically enough to show the Workbench GUI.

Web browsing (Mainly Ibrowse, though I have an old laptop with Ubuntu Linux, Firefox, and a VNC server so I don't need to relocate for the stuff IB can't hack)
Playing demos/games/etc...
Twisting and contorting standard (and some rather obscure) accessories in ways that would horrify the original manufacturer just so I can use it on the Amiga. (Almost every I/O connecter on the back off my 1200T contains some sort of adapter before going to something useful, at least one of which is a horribly constructed wire-crimped mess of a cross-over cable held together with electric tape)
Plugging random USB stuff into my SubWay just to see if it works.
Other various tinkering.
Writing code (currently for PalmOS to Amiga conversion stuff, a few other things I have on the back-burner)