Cleaning...

So like, everyone knows that cleaning is important...it keeps things fresh, healthy and so on and so forth. But there is a point were you do that 'deep' cleaning, where you evaluate everything and you start destroying/throwing stuff away This means that you'll probably come across some valuable items that bring back memories from years (and in some cases, decades ago).
What sort of items are they? what significant value do/did they have? And if so, what made you keep them/throw them away?
Please click the link. Thanks :) http://cur.lv/5mz7s