The wonders of the web pointed me to many different sites (including a favorite Not So Idle Hands) discussing methods and recipes for refilling these jars at home! I have been doing this for a few months now and have perfected my recipe. So here goes for those of you out there who feel the same way.
Empty foaming soap dispenser
Body wash or dish soap in your favorite scent (I have only tested this out with 'clear' body washes and not creamy types)
HOT water (not boiling but really hot)
If your soap dispenser is a little gummy around the spout (like mine), give it a rinse to clean it off.
Pour your body wash/dish soap into the empty jar. I use approximately 1 inch of body wash or to the "T" on the side of the bottle. For dish soap I use a little less because it foams far more. There is no exact science for this...if you use more soap, the suds are thicker.
Pump a few times until you feel warm suds and then you are done!
I will be honest with you, I have used Bath and Body works Shower gel for this so the scent and the pump match. This is more expensive than using other shower gels or dish soap...but this is great for those of you who still want the scent but want to save some money. If you can buy the shower gels when they are on sale for buy 3 get 3 free you will save a lot. I think I should get 5 or 6 refills out of each shower gel!