I've got about 20 jars in my apartment right now that I'm smoking my way through. Probably the same amount sitting in storage as well. I occasionally trade them in and out but try to keep my open jar count at my apartment between 12 and 20.
I generally have 3 blends on the go at a time. I love novelty and have enough jars I can open to have more available at anytime but I only keep 3 open at a time. Partly because I like to keep a tidy space and my “pipe room” is basically a closet in my house. I also found there’s something about limiting my choices and finishing a tin that feels good.
Anything in my pipe cabinet that is in a mason jar is fair game, and currently I have just over 50 jars of tobacco. They range from aromatics, burleys, Virginia's, English/Balkan and some house blends. Though most are English/Balkans and Virginias.