Does anybody know anywhere to buy old wrappers apart from Ebay ?

I would like to be collecting more than I am, but certain people on Ebay seem to have inexhaustable pockets, millionaires or owning a curiosity shop no doubt.

kitkattwo, hellomum123, arkwrights, two2pence, jaz_00_uk and member123berlin

seem to be the most avid collectors

Most interested in 70s stuff as that was when I was a teen