Separating Recyclables

You run a recycling center. Your trucks bring in the recyclable items all mixed together: plastics, cans, and glass jars.

How can you easily separate them by some automated process?

At the end of the process, the plastics should be together, the cans should be together, and the glass jars should be together.

Please try this puzzle on your own before googling current solutions. You might come up with something better.

Drying Tennis Shoes?

I got caught in a bizarre downpour yesterday and my tennis shoes got soaked.

How can I dry them in a dryer without them banging around?

Drying them with a full load of towels (or something) helps, but there are more creative ways. How can you do it?