I NEVER EVER
EVER put anything in my tea. I've found that properly brewed tea (or coffee for that matter) should not require anything to make it palatable. If you have to add stuff, you've probably over-steeped or "cooked" the tea. Also, go with loose-leaf whenever possible. Bagged teas are usually the "dust" from producing quality teas--or worse--where never quality teas to begin with. Good quality loose-leaf stretches your dollar as well, as it can be re-steeped as many as 5 times!
Lipton, for instance, is part of the Unilever corporation--the makers of Skippy peanut butter and Axe deodorant. While this grade of tea is often times suitable for the general public's taste, it is far from the otherwordly experience that high-class tea can be. If done properly it's EVERY bit as complex as fine wine, and is less expensive with more major differences!
For an excellent source of high quality tea at VERY reasonable prices, check out my local homeboy
here. If ordering online I always recommend shooting an email and asking him what he has that isn't up on the website. His stock is constantly changing, and so a lot of truly superb teas never even make the page. I just picked up a Himalayan Oolong that was absolutely to die for, and he didn't even have it on the store shelf yet! Unlike any typical Oolong I've had, it had a spicy and almost malted kind of flavor...it was almost like beer tea!

I highly recommend it.
For alternate modes of tea prep, I suggest taking a peek at gaiwans. Not good for tossing in the pack, but great for enjoying a single cup of tea at home. For on the trail, I recommend a Swiss Gold tea ball, like
this one and a small tin of tea like the smallest size on the Bar Harbor Tea Company site. He packs them in metal tins, which would be useful for other tasks as well once you run out!
My fiancee and I actually met because of good loose-leaf tea! It's my other hobby.
