I drink tea all day at work (usually water at home, cola only if I'm I'll, such as this recent stomach flu).
Peppermint and chamomile can both be found regularly at dollar stores, so I drink a lot of both. Other than that, I generally stock whatever's been on clearance at Big Lots. I keep blackberry (loose) and sometimes rosehip and clover with an infuser - those I gather and dry myself. I'll buy licorice and hibiscus for health reasons - can't grow those effectively. The hibiscus turns up at Big Lots occasionally, and I stock up then. The licorice so far has to come from a health food store - never seen it anywhere else, though there are some medicinal blends that are mostly licorice, and I'll buy them on clearance if I find them.
In the mornings, I drink a cup or two of black tea, Earl Grey if I have it, cheap Walmart bags if I don't, lik Bob (Save-a-Lot is cheaper if you have one, Bob).
I don't put anything in my tea, so no worries there, and generally one bag is good for two cups.