Shortly after I got out of college I became interested in single-malt Scotch, and for about five or six years I spent a lot of time and money learning about different whiskies, whisky regions in Scotland, the history of particular distilleries. I branched out into other types of whiskey--bourbon, Irish, Tennessee, etc--and tasted a lot of different expressions. At one point I had more than 20 different whiskies in my liquor cabinet, most of them fairly high-end.
Eventually, though, I sort of settled into a "routine" with whiskey, and now I usually have one good bargain Scotch for "everyday" use (although I don't drink every day), one standby mid-range that I know I will like a lot, and perhaps one or two nice ones that I can bring out for guests or special occasions. I still love a great Scotch, and to some degree I still covet that $400 bottle of Macallan 25, but I don't feel like I have to concentrate on every sip anymore, or just limit myself to the absolute best.
I'm just beginning my obsession with tea, and likely this phase of buying and tasting many different teas, researching histories and regions, learning about different tea rituals, and so on, will eventually pass--though I expect it will be some years before it does. But I expect that there are others of you who are a bit like me--obsessive at first and eventually settling into a comfortable routine. For you, what are your "everyday" teas? The ones you know you will enjoy, but don't necessarily have to pay a lot of attention to, or futz around with too much, and which you usually or always keep stocked?