
If you want great quality soap and don't mind some nicks and dents, then you can pick them up at Lady Lam Atelier - sold for only 50-cents per oz.
These soap bars are just odds and ends and corner pieces with dents and weird-looking folds and wrinkles that don't make the cut for regular packaging.
You can get this amount of soap

for about 3 bucks, and it'll last you a little over two months. Keep the bars out of standing water to prolong the product.