what I've noticed about the headshop around here is that the underground (maybe underground isn't the word I'm looking for) clothing lines that they carry (such as LRG, Scifen, Artful Dodger, Arisue etc) attract a large amount of customers, since the target markets for the clothing and paraphenalia are almost the same (people who believe in the concepts of LRG or Scifen are genereally open-minded people, who in turn smoke bud). The one I'm talkin' about in particular is called
The Altered Native
So I guess my point is thatcarrying clothing lines specific to the most demanded in your area could also be a good opportunity for business.