Bubbles

1 c. Joy or Dawn dishwashing liquid
3-4 tbsp. glycerin
10 c. clean cold water, up to 50%  more on dry days
Measure 10 cups water into a clean 2-5 gallon bucket.
Add dishwashing liquid and glycerin and stir gently to avoid froth.
A lot of bubbles for a lot of kids, you may wish to use 1/4 of recipe.