Tow-behind battery ~

Make a trailer with a huge battery and cover it with solar panels.
Market it as a Tesla range extender.

Walk in garbage sled ~

When you have to pick up garbage on the side of the road or in front
of a business you could put on this backpack harness sort of thing
over your shoulders that has security reflective tape of bright colors
that and dangling down ankle or even ground level would be a foot high
basket nylon thing to be able to pick garbage. Then you could hold to
reach extenders in your hands and pick garbage and other things from
us up from the side of the road and put them in the basket.. Have
straps on each corner of the basket so that you can easily lifted
impedance. You can make disposing of all the garbage that people
throw out of their cars a little bit easier.

In-class podcast ~

College professor or high school teacher could run their class like a
podcast and do it live every scheduled class time. That way parents
could be involved and see/hear if their child is acting up or
participating. And there would be a recording for all to review if
something happened.