Convenient recording of riffs/ideas

[Leviathan]

What do you guys use? I used to have a cheap tape recorder, but it broke. Trying to find stuff on a tape can be annoying, though, so I'm done with that. For a while now I've just been writing stuff down right away, but that's kind of a pain in the ass, and I sometimes can't remember the exact rhythm of my riffs when I go back to play them later. I just need something that I can use immediately, without any setup. I know there are portable digital recorders out there, with built in mics, but I don't know much about them. Anybody have one of those?

[Jebodiah]

You can't just use an mp3 player's recording feature and upload onto your computer?

[Muffin]

If you don't mind going digital, a Line 6 studio GX into a DAW is pretty painless. It'll only set you back like 100 buckaroos. Wont sound the best, but whatever.