What's the right kind of soap for making bubbles?

I decided to do a post on whether you could make a good bubble mixture from an ordinary store brand dish soap or whether you needed to use Dawn.  I had two large jars of bubbles mixed up--one of each kind.  I went to go find my camera and returned to the above.

Yup, Toddler #2 dumped both jars out.  That's nearly a quart of bubble mixture that is now on my steps.

Perhaps this will explain why I haven't blogged in nearly a week.