"I'm using time machine for backups, so i don't think i'll lose much"
Time Machine is great, but as others have mentioned that may not help if the building catches on fire. It's good to also have your stuff backed up at a different location, preferably in a different time zone. :-)
Edit: Like others, I use DropBox for stuff that doesn't really warrant a full-blown source control system. It's very easy to just right-click, compress, then copy the zip to the DropBox folder.
Time Machine is great, but as others have mentioned that may not help if the building catches on fire. It's good to also have your stuff backed up at a different location, preferably in a different time zone. :-)
Edit: Like others, I use DropBox for stuff that doesn't really warrant a full-blown source control system. It's very easy to just right-click, compress, then copy the zip to the DropBox folder.