|Crocheted Soap Savers from Zadzukki|
To use the soap saver, simply open the drawstring at the top and insert your scraps, or as I prefer, the whole bar. Then, pull the strings and tie to close the sack. You can hang the soap saver from the shower head or faucet so your soap dries between usings and lasts longer. This also prevents your fancy soaps from turning mushy in the soap dish. Another thing I love about using the soap saver is that you wet the whole sack and scrub with it, making abudant lather and exfoliating your skin.
If you know how to knit, I found this free pattern online for you: http://knitting.about.com/od/knittingpatterns/p/drop_soap_sack.htm