A train that ejects passengers at the right station

A few years ago, I took the Bart from Mission to to Embarcadero every morning. The image above shows what it felt like. Squashed between morning commuters, I came up with a fix. Note how people tend to flock around the doors. The rest of the train is completely empty.

A tower bus

We could save a lot of time and elevator energy if buses had more floors

Toddler toothbrushing

Mouth openness as a play button

A heavy-duty photocopier that also cleans the floors

When making copies mobs the floors

A direct-to-machine Nespresso delivery system

Coffee capsules could flow like a public utility, and we don't have to deploy pipes under the streets.