Or if you want to get something back for what is 'clutter' to you - at least clothes-wise - you could try to swap clothes at:
http://www.swopshop.ie/about-us.php
Disadvantage is there is a service charge, but it seems this is just €5-10 on like for like swaps which is not bad considering you can inspect and try on clothes prior to swapping or parting with anything, the absence of which for me personally is the big disadvantage to the online sites or 'e-caveat emptor-bay'!!!!