So here I have an idea for a plugin I would like to do myself, but I'm not sure how to do it yet.
The basic idea is to have a command to add or subtract 1 or 10 to any given number:
I have "10", and I place my cursor anywhere direct to the number ( "|1|0|", pipe being where the cursor can be.).
I press CTRL+UP and the number turns into "11".
I press CTRL+ALT+UP and the number turns into "21".
I press CTRL+ALT+DOWN and the number turns into "11"
I've done this with Ruby on TextMate, and it's a good time saver when working on moving sizes of things.
Hope someone can do it.