I have so much costume jewellery that does not match i.e. I have necklaces that don't match earrings and bracelets and some that don't match any outfit so don't get worn at all. Work out which pieces you don't wear and why. Then you can revamp them by changing the centre pendant, removing the pendant, re-beading, etc. Swap with your friends. If you have a favourite piece, keep it in mind next time you purchase a new garment. Combine with another tip - add the details of your accessories to a notebook so when shopping you can ensure you buy something that you can use!
Contributed by Leah