Organza bags are nice they serve several purposes...
1. Packaging that looks nice.
2. Packaging that lets you see and smell the soap through.
3. They can leave the soap in the bag to use it, the bag acts as a light scrubby for the skin.
4. They can hang their soap in the shower to dry out so the soap lasts longer.
5. On Etsy you can get them in dozens of colors to match the wedding.
6. They are very affordable.
7. Because they are used they are better for the environment.