The Secret to Perfect DIY Bubble Solution Is...

...Glycerin!  Yep, it's just that simple. Mix about 1/4 cup dish soap with 10 oz water. Then add a tablespoon of glycerin. Glycerin slows the rate at which the bubbles dissolve, so they last longer. Have fun! (oh and you can find glycerin at Michael's in the cake-making-supplies section. I've heard you can find it at drugstores too...although it's not technically a "food", it's safe to ingest in case your kids take a sip or get their post-bubble-blowing hands in their mouths).