I have a small bag of unopened, still sealed full and travel size items. Can anyone give me some tips on selling on Ebay? I would like to group items so that I have to mail out less even if I might make a little less in the long run. Would you group by brand or cosmetic type (eyeliners, lip products, etc) or something else? Would pricing items about half of retail be a good place to start? Thanks for any ideas.