Have you heard of this idea to get rid of 40 bags of stuff from your house over the 40 days of Lent? I'm not sure where the idea originated, it's all over the blogosphere. Part of last year's process:
Basically you recycle or throw away 40 bags of stuff from your house. Pick a size of bag (grocery bag, kitchen trash bag, lawn and leaf?). I use a kitchen trash bag size. You can get super specific and say how many bags you're going to clear out of each area. That's a little to "planny" for me but maybe it will work for you. instead of counting the bags as I go, I'm going to pull out 40 bags and put them somewhere separate so I can see clearly how many I have to go. I end up with a mix of trash and donate, so I make the donate bags apparent by tying bright yarn around each tie. At least once a week I load up the car with donate bags and drop them off somewhere. I don't want those accumulating around for more than a month!
I'll be doing my whole house this year, but my main focus will be the basement. God help me.