Ubuntu :: Where To Get Good Programs?

i am using xubuntu and love it so far! fast and stable, but i have a question. i am not a big gamer, just a few casual games, i am also not an office document user. i do not use openoffice.org or libreoffice, i just have my basic text editor. i do not do any web developing or anything. basically i reply to and send a few emails a day. i use gmail for that, not an email program, i use facebook a few times a day. i watch a few tv shows online. i videos occasionally, and i post on these forums. but my computer feels empty, is there any good programs i can just play around with. conky was one, its alright, a little confusing though. is there just any fun programs to play with. i don't care what they are, work processors, or web browsers, just some oddball programs or something? heck i don't know, i am just bored on my pc and looking for some entertainment.