I saw a shirt on Cafepress.com that summed it up pretty well: 'Procrastination is crack for writers.' It's spot on, because putting work off is something we can't help, and can't stop without a 12-step program. I may be the worst offender of all time, because I have a list of ideas and writing to-dos that literally stretches back weeks, months and years.
For example: I've been meaning to mention Chuck Sambuchino's Guide to Literary Agents blog for a long time. He's the editor of the annual print edition, and has the latest on new agents, closing agencies, who's reading what, and where new writers should send their work. Chuck keeps the blog updated, and should be an essential resource for every fiction writer. He's also a nice guy and a great speaker, so if he comes to a conference near you, definitely drop by to hear his session.
There. One thing off the list. Now, I just have to fill out the list some more to avoid working on my next article. Then, I'll work on the article to avoid blogging. After that, I'll blog to avoid my to-do list. See, it all works out in the end.