I’ve been thinking about bubbles today.  I’ve been thinking how they are friendly and approachable, associated with sunny days in the park, foam parties, and protective packaging for new glassware.  Soap bubbles are fleeting – one minute they’re launching themselves off the end of a little pink plastic wand, the next they’re floating through the air, and then … they pop.  Bubblewrap doesn’t last long either because it is so tempting to sit around compulsively popping all the air pouches.  Bubbles do stick around when you trap them in something like plastic or glass – which brings me to …