Leila at Like Mother, Like Daughter mentioned in passing a while back that the business end of a blender will fit on any regular mason jar. I read that, read it again, and thought, hmmm... I think I can make use of that information. Too bad I threw out all the mason jars I had saved. And then I started saving the mason jars that came my way.
I put the lids on and put the jars in the refrigerator, and had a healthy snack ready and waiting for me. All I had to clean up was the blade and the ring, which go easily into the dishwasher (and so do the mason jars after they're empty). Easy.
Go see who else is making their time online count.