We've been forced to declutter effectively (as opposed to shoving some things in a charity bag occasionally but still having loads of stuff), by knocking down our kitchen, so all kitchen stuff has to fit in the dining room or living room. And the spare room which is full of junk now has a lodger in it.
Freecycle has gained hugely - I've found that carrier bags full of similar stuff (bathroom items, food/kitchen stuff, kids creative junk) get snapped up, so things like half-full box of washing powder we don't use, jars of chutney, unopened spices etc are now all gone. Plus a mattress, duvet, curtains, loads of pillows and cases, towels, dustbin, 7 pans...
Also managed last weekend to go through all dd's clothes and any 12-18month ones not being worn right now, and any smaller ones, are in bags to give away - to a friend if I see her next week, otherwise Freecycle.
Ds has too much junk in the way of his drawers, but also doesn't have enough storage for his reasonable amount of toys - he will be moving into a new room shortly so everything will get vetted before moving. Probably by me while he's at school. :)