Do you buy expensive hand soaps from specialty stores?
Don't worry- I used to, too.
And then I discovered how to make (or well, stretch!) my own.
After spending tons of money in my younger years on expensive Bath & Body Works Hand Soaps (with tons of chemicals in them), I finally found a better option.
Once you've finished with a hand soap bottle, if it is a foam pumping hand soap bottle, you can re-use it to make your soap at a fraction of the cost and almost no work.
After a foam soap bottle is completely used (I actually have a few friends who will buy the expensive soaps and then just give me the foam pump bottle when they are finished using it!), I rinse it out with some water.
At that point, you can take your favorite soap (I prefer to use more eco-friendly and less chemically laden soaps) and add a few squirts of soap into your foam pump bottle.
The next step is to fill the rest of the bottle with water and secure the cap. Shake the bottle just a bit, and you're done.
For using just mere squirts of soap, you're getting a full bottle of hand soap out of it!
This method is extremely cost effective for your pocketbook, but also very much eco-friendly. When you're reusing your (or someone else's) foam soap pumps, you're purchasing less plastics and throwing away (... hopefully recycling!!!) less as well!