Here's a quick mascara tip for you.
Is your high end mascara always drying out before you can get to use it all? Stop purchasing the full size tubes and start buying 2 or 3 of the travel sizes every time you go shopping. The smaller sizes will run out of product right about the same time you start drying out. If your favorite brand doesn't sell travel sizes, take advantage of Sephoras holiday mascara sampler. This way you can try their most popular brands in hopes of finding a new favorite.
And try Ebay. Ebay sellers are always selling travel sizes of any mascara possible. Happy shopping!