Also, don't get the liquid soy lecithin. It's messy. You'll do better with the granules. Macey's sells them in a bag for about 8 bucks. They last a long time and have a better impact on the bread, IMO.
Unless you are using the soy lecithin to replace the oil in recipes (like the bread recipe from Pantry Secrets). The granules won't work, you have to use the liquid (according to the Pantry Secrets class).
Orem Maceys has Pantry Secrets liquid soy lecithin for $9.99 (32 oz). So it's cheaper to get it through Janine at $8.00.