Did you ever do your homework in advance, just to get it out of the way? I used to do that a lot when I was a kid. I knew that I was going to have to do the first 10 exercises out of the next chapter of "Spelling Is Fun" or whatever, every single week, so I would often just knock out two or three of them at once. Yeah, I was a huge nerd.
I wish I had that sort of discipline now. I try and try to work to get ahead in writing blog posts and Complete Characters, if for no other reason that when I eventually get stuck late at work on a blogging night or I go on that elusive "vacation," I already have content there, waiting in the wings. But, like I said, it's tough.
You know who is really good at this? Sohmer and Lar, the author and artist on Least I Could Do. I read a number of webcomics, and even those creators out there who are really professional, respected, and make a nice living at their craft, often miss deadlines because they get sick (*cough*hungover*cough*) or get wrapped up in convention season or whatever. Not dogging on those guys, but man, kudos to Sohmer and Lar and that whole crew. LICD is always there for me, never fail, seven days a week. That's a hell of a thing in a business where expectations are, quite honestly, usually pretty low, and fans very forgiving.