I was originally going to frame this question around TextMate, which is by all accounts an amazing editor, but only available on OSX. I was curious how those who have spent time learning to use TextMate efficiently deal with the situation where they have to edit on a non-OSX platform. But it's really a more general question. How do people deal with situations where you can't use your preferred text editor?
I use gvim and vim primarily, and I know that these editors have a rather esoteric set of keybindings, so when I'm editing in another editor I'll often mistakenly type things I didn't want to type while trying to navigate. This can be very inefficient.
So how do people deal with these kinds of situations? Just swallow the inefficiency? Try to avoid the situation or go to great lengths to get the file that needs editing into your preferred editor? Do you have one or two editors you're proficient with that you can switch between without problems? Do you change the keybindings of other editors to more closely match your preferred editor?