I use mine for a bit of everything really.
I write a lot, so NotePad and TuiTED get a lot of exercise as well as TVPaint, ArtEffect 3 and Photogenics (for a bit of image manipulation for articles). I'm currently working on a dissertation and I'm using AmiPDF a lot for that as well as AWeb for browsing for information.
Besides that I'm listening to radio streams using Tunenet, listening to sids using Sid4Amiga, playing various albums using Amplifier and using UADE for mods (using deficons for that).
I'm using SimpleMail for all my email needs. DvPlayer or Mplayer for watching fansubs. AmIRC and Wookiechat for IRCing and instant messaging through Bitlbee (all the time really :-)). I have Dopus4 set up for various tasks but mostly use the Workbench for various tasks. ATC gets a lot of usage as well - both for maintaining my homepage and shuffling files around locally (when I'm not using samba between my various machines).
Once I get more time on my hands I intend to use Goattracker quite a bit for making some sids (already did one). Once I get hold of a midi sound interface I plan to play around with HD-Rec and Horny, but that's some time into the future yet.
I used to use Newscoaster quite a bit, but don't have time to keep up with usenet anyway these days. TurboCalc gets fired up when I need to do the odd calculation. I use FryingPan to do backups now and then (cd or dvd).
TView is used to keep track of what I won't be watching on the telly anyway - it's good to be on top of things
Since I'm a bit of an emulation buff I enjoy messing around with various emulators - my favourites are VICE and FPSE. At the moment I don't use VICE much though, since it's so easy to just move the files to an SD card and put them in the C64 itself.
I also play the various games when time permits. There are lots of great SDL ports and a huuuge amount that I haven't even tried yet (Beats of Rage rocks!). Since I'm a huge LucasArts fan ScummVM gets a fair bit of exercise as well.
I guess I use my Amiga for pretty much everything. I just don't have a supported printer, so when I've finished parts of my dissertation I move the files across to my Powerbook, fix typography there and print from that. I'd like to be able to print from my Amiga some day in the future though.
I <3 my µA1-C :-D
