Just started to list a few of these and discovered that there are two identical categories i.e.
Collectables/Smokerama/Cigarette Cards (c. 9000 listed)
Collectables/Trading & Cigarette Cards/Cigarette Cards (c. 4000 listed)
Seems like these two could be amalgamated under 'Trading and Cigarette Cards'.
I don't pretend to know much about this category but it might be a good idea to have a few basic sub-categories by manufacturer - Players, Wills, Ogdens, Other etc.