It's a lot easier to work on a story during the commercials when I'm watching TV, grabbing lunch somewhere, or waiting for a bus if I can jot stuff down in a notebook. The only time I take my laptop anywhere is when it needs fixing, so it's not like I've got a computer handy when I'm away from home.I abandoned writing by hand due to the fact that it takes one more time to write by hand than to type (if one is fast enough with the keyboard that is), so it would literally make it impossible for me to write my works as fast or as flowing as they are at the moment, since i would have to wait for my hand to finish writing the words which would have been already typed in the computer
Moreover there are the added conveniences of spellcheck and text formatting.
Let alone that my handwriting was never something to write (ehm) about
As for formatting, I've caught myself just automatically including BBCode in my writing, to remind myself where to underline and italicize particular words and phrases.