I've had a couple folks ask about floating dry flies. You can use Frog's Fanny, Loon Dust, Top Ride, and many other commercially available floatants, but all these can be pretty pricey and you'll go through the tiny bottles pretty fast.
Many may already use the epoxy thickening product known as fumed silica. Basically it is the same thing as Frog's Fanny and it works really great. You can order it here (be sure to get only the fumed silica product-the 4th product down-the others won't work) You have to order a minimum of 3 quarts of the product:
http://www.epoxyusa.com/category_s/4.htm
How much is 3 quarts, you ask? Well, it's packed in a box that will be 6" square and it will be enough to fill your empty frog's fanny container probably 100+ times. I've been on the same order for over 5 years and still have 1/2 a box left.
Find a partner or two and split the order. You'll be ready for the epic LO hatches in February and March.