I write a list of things to do and work through them. The advantage is that you never get through it (well, I give it a go on Christmas Eve), so whether you sit down at your desk you have a choice of things to do and spend less time 'getting into it'.
Break things down into smaller task, so write three new pages actually consists of loads of things - keyword analyisis, titles, accompanying images, fact checking.
I don't do bookeeping but the people here who do have a weekly meeting to work out what needs to be done and then a list after that.
Check forums at the end of the day, so you can make yourself do a certain amount of work before you get into them.
Yesterday, I started tracking what I am actually doing when I sit down at the computer. It usually starts with checking emails (and that is where I find my first tendencies to stray).
Checking the forums at night is a good idea, maybe a quick peek in the morning to make sure I didn't miss some news or announcements.
Taking the content aspect of webdesign and breaking it down even further may help me as well.
Bought a palm and uploaded all my tasks into it (handy little gadget). I think I will create a set time for specific tasks and make the alarm sound until I work myself into a new habit. Should also prevent me from getting side tracked. I am so determined to break this cycle of "wayward webmastering"
Consider staying disorganized if it's working for you.
I think that for some people there is an inverse relationship between organization and overall productivity, and I certainly think organization often inhibits creativity and innovation.
I'm also wondering if "messy" but content rich Frontpage websites may actually have advantages in ranking all other things equal, since the FP format is rarely used by scraper and other automated sites.