Divide your stuff up
Sentimental stuff, pair it down
Jewellery doesn't take up much room don't throw
Clothes you may wear again, but wear once every 3-5 years select your favourites and vacuum pack and store in loft
Board games you no longer play, select out 4 and pass on the rest
Mugs no don't save. Unless DCs are getting a flat in next year, just don't save them..,it's crap you don't need and they can buy even in a charity shop for 50p each!
Boxes for jewellery share those out one each, maybe a second one if they can fill it up-if not throw them
Books? I can't throw books
Unless chick lit unimportant then I can pass into charity
Save 10 chick lits throw the rest
If you haven't read those yet they can go
Don't every throw poetry or other books that's blasphemy