For whatever reason, Splenda (artificial sweetener) tastes *far* better than
sugar in sweet tea.
I use Upton's Scottish Breakfast tea -- lose-leaf tea, actually:
http://www.uptontea.com/
Two pounds (a little over, actually, they sell 1 KG) for $28.10, I like the
Scottish Breakfast Blend best.
I boil one gallon of water in a large pot, and then add 12 tablespoons to
the pot (which has been removed from the burner). I let it sit for 5 minutes,
then pour through a tea strainer (or very-fine mesh sieve), into four one-quart
Mason jars. I then put on the lids and bands, and allow the tea to "assume
room temperature." Those jars don't last long: I tend to drink about a
gallon per day.
I do the same with green tea, except I like to add LIME juice (which makes
it cloudy).
75 calories (or so) per gallon, and MUCH cheaper than bagged teas, for the
very finest iced tea you have ever tasted -- why would anyone spend more?