I've recently seen a couple of interesting ideas for using lemon peel and I thought I'd post them here and see if anyone has others.
Peel the lemons with a fruit-peeler (i.e. into thin strips, avoiding pith) and then dry them in the oven on a low heat. Put the dried peels in a jar and use it for making hot tea/tisanes. For instance you could do lemon and honey using a couple of strips of the lemon peel, if you didn't have a fresh lemon handy.
One blog I read (I don't remember which, sorry) said she does the above, then grinds them in her spice grinder. The resulting powdery lemon stuff is used as a flavouring in cookies, salad dressings, sprinkled on fish as a seasoning, etc.
I think I saw this on Food in Jars recently. Take the same lemon peel strips and put them in plain white vinegar. When you use the vinegar for cleaning, it'll smell nice and fresh. (I think the example used clementine peels, and I can definitely imagine doing this with orange too.)
Anyone else got good ways of using lemon peels instead of letting them go to waste?