"Two pages a day."
This advice is pretty similar to what we are doing in my writing class, because I have found that writing for 20 minutes a day (when I finally remember to do it) usually yields about two pages of writing. It really is true- the more you write, the better you become at doing it. This is also the theme for Gail Carson Levine's Writing Magic: Creating Stories that Fly, a book I highly recommend for anyone who needs a push in the right direction.
Combine that book, with your timer, while typing on Write-or-Die's scary website, you're sure to get something other than cobwebs out of that hollow head of yours!