Sorry for replying so late, but I don't guess there are many people here who would know about these things, so...
Libre or Open Office is what I'd recommend for documents and stuff.
For watching videos, I use Kaffeine, but if you like VLC, that's fine, too.
For games, I recommend these (these package names will probably work in synaptic on Ubuntu, but I'm running Debian, so I can't say for sure): einstein (logic game), hex-a-hop (puzzle game), sgt-puzzles (Simon Tatham's puzzle games, a good variety including bridges, sudoku, and lights out, among many others), and xshisen (tile game).
Hope that helps.