Heh. I know the feeling.
What's funny and sad is that I often have great ideas about what to do about these problems when I don't have a computer or even a piece of paper to write them down on. I'll have this great idea while walking or driving and think, "Oooh! Got to write that into the fanfic," only to forget what it was after I finally get to a computer or a piece of paper.
Maybe I should start carrying a tape recorder around with me...