Ginger Tea
My coworker just came by and told me how she makes her healing ginger tea (no amounts, though): chop fresh ginger and simmer it in water for "a long time" (I think it took less than an hour for her to make), then add a Lipton tea bag and steep for a normal amount of time. There weren't any bits of ginger, so I don't know if she strained them out or used cheesecloth while steeping the ginger, but the liquid was cloudy, so I'll probably try the first technique. Add honey and lemon and you're done. I'm sure it'll take a lot of experimentation for me to get it right in my own kitchen, but it's worth it. It's spicy-hot with ginger and you can feel it blooming warmth in your chest as you drink it. Great stuff.

Another coworker has been trying to get the recipe and technique right for two years, and he finally has it. He said things go pretty much as I said, but use about a liter of water and boil the ginger (scrubbed and sliced but not peeled) for about 30 to 45 minutes. He also said it takes copious amounts of honey, so keep adding and tasting until you've got it right.