When I was 16, my Grandfather saved soap slivers for an entire year. When Christmas came he molded them all into the shape of a deodorant container and made a twist up soap bar. He was an extra thrifty gift-giver, but I think this idea from Martha Stewart sounds a little easier than Grandpa's handiwork.
Martha Stewart and her team of thinkers always have a great tip to share. This time they're talking about bathrooms and the little bits of leftover soaps. I've been a devoted bar soap user ever since I took a tour of the Zum warehouse in Kansas City, but that last little bit can get a little menacing.
Camp Martha suggests cutting a slit into a natural sea sponge and placing those slivers or leftover hotel soaps inside. It keeps them in control and can make a perfect little extra for a guest bathroom.
Read More: Soap in a Sponge from Martha Stewart
(Image: Flickr member rioncm licensed for use by Creative Commons)

Stanley Console by ...
That sounds much more expensive then buying a new bar of soap.