alphabetically:
- akregator (I know that there's Liferea, but I like this one better)
- audacious
- bluefish
- firefox
- gedit (but exploring vim)
- mail notification
- oowriter
- smplayer
- terminal - almost last but not least

- viewers/readers (evince, adobe reader, eog/but editing in gimp)
OK, admit, it's more than 10
