Just happened across this...hopefully you're still on these boards. It was indeed called JOLLY JOINT. My dad owned HOME DECOR -- I was occasionally behind the counter on Saturdays playing w/Matchbox cars.
Jolly Joint was owned by a different company, and they rented space in the stores from my dad. (And I think they had some of their own locations too.)
I was very little, so I don't recall everything, but I do remember Jolly Joint -- I even have the item they gave away with every purchase: A mirror in a plastic pouch (w/their logo on it) that I didn't know for YEARS (b/c I was around 7 when I got it) was a cocaine mirror!

They had bongs and roach clips for sale. They also sold Muppet figures at one point, b/c potheads loved The Muppets.
Not surprisingly, being around all that, I never in my life had any interest in drugs. But I still love The Muppets. =]
I don't recall the wicker furniture someone else mentioned, but I recall wicker baskets, T-shirts & iron-ons, lots of various home items of course, the pinball machine in back, which changed every so often (my dad didn't own those -- he got some of the money from them, but the company that owned them basically maintained them and, when they started not to draw a lot of money, would switch them out for another machine at their leisure); when "Chinese yo-yos" became a fad, I sat in front and played with one for hours to help sell them. There was also jewelry on one side of the store, some of those lava lamps, and some of whatever you call the lava lamps that had the gooey stuff but no lights in them (what WERE those called?!), plenty of posters were for sale too, black light posters included, and these really ugly faux wood carving things that had photos, like, glued to them with images of Corvettes driving at night or panthers prowling on rocks or some such.
I also recall, outside the store, Orange Julius in one direction, Friendly's in the other!