Okay, yes, lovely to relax and putter around, but there's something you've been meaning to do "on the weekend" for how many months now?
Before you get distracted into sedentary activities, just go work on it right now.
Walk away from the Web and make it happen.
(In my case this was "sort out the stuff for yard sale into '$5/each or 6 for $20' and '$2.50/each or 6 for $10' boxes. This morning I did not turn on the computer until AFTER I had done so. Sometimes the siren call of Flickr, blogs, news, and cartoons can be resisted! And since the first thing I did was read a chapter of that book I've been meaning to finish, I still felt like I had had a gentle start to the day.)