What organization will pick up donation (clothes etc.)?

I am moving out shortly (I live in Fort Collins, Co) and I have a lot of stuff that I will have to throw away if nobody will pick up (clothes, kitchenware etc.). I would like to donate this to some organization, but I already sold my car, so they will need to come pick it up themselves (I know that Goodwill for instance will not come to your house). Any ideas?

Salvation army, churches or check which community service distributes meals on wheels and they could refer you to the right place. If you put it on the curb marked FREE alot will get taken. Also, alot of communities have the red boxes for donations thru Red Cross