Make a list, check it twice... ;) (Sorry, I couldn't resist!)
Seriously though, make a list, prioritize the list, and then do as much as you can on the list. Sometimes, if you have vacation or sick days you can take to do this, that's the best way to go. The kids are in school, you have a little reprieve from work, the mall isn't as crowded, so you can knock out your whole list in a day or two.
Sometimes you just need to hit "reset," and you can't always do that while juggling everything else we juggle as moms. Take the day off and get your stuff sorted out. You will feel better! :)