It's water and bubble day at playgroup on Thursday and I've got the job of mixing the bubble solution. Just thought I'd record the recipe that seems to be working so I can make more later....
2.5 cups filtered water
2 tbsp glycerol
1/2 cup "Morning Fresh" concentrated detergent
It's just mixed, and it's making nice big bubbles. I'll try it again later when it's had time to sit and think.
***ETA it wasn't very good.... I think I'll use "Blast" detergent next time and distilled water.