Karrot tries to be self-explanatory, but I guess we all agree that it can be confusing in the beginning. @tiltec wrote a nice walkthrough in November last year, but since then the whole design changed, we got new features and the navigation is not the same anymore. So that walkthorugh is not really up-to-date anymore…
I started writing a new, very detailed howto, which is so detailed that I lost motivation not even halfway through… 
Is anyone of you maybe interested in helping out? No need to build on top of what I already wrote; if you’d rather start from scratch please go for it! It’s just that some kind of manual or guide is probably necessary, I guess.
What do you think?