I finally found a great use for the function keys! Using xbindkeys and xbindkeys-config, I was able to easily map the F2, F3, and F4 keys to go directly to the post page for some of my blogs. I'll have to send the .xbindkeysrc file to myself so that I can load this on all the computers that I post from. I don't know if it will help me post more frequently, but it certainly can't hurt.