Advice sought from ebay sellers (in the UK)?

I have a load of sheet music to sell and am an Ebay virgin! Can anyone advise on packaging and postage: I'm thinking of putting the music in sealable polythene bags inside hardbacked envelopes, does that sound about right? And any tips on where I can obtain the bags and envelopes at the most cost-effective price? Thanks!Advice sought from ebay sellers (in the UK)?
Try ebay....people sell packaging on there and it's cheap.....or make your own.....recycled cardboard and carrier bags work well...plus it costs you nothing and you dont need to add the costs of packaging to their bill....which if it has cost you anything...you always should do.