I just learned, quickly, how Not To Use Them: Don't stand in them. Apparently this was a lesson I needed to learn.
One of the errands I've done for the last couple of weeks in my current job is bring Energy Saver Kit boxes to a post office in downtown. I go to that post office each day anyway, to get applications from my office's PO box, but these kits were returned to us due to incorrect addresses that we've since corrected. Sometimes there are a lot of these. Sometimes I need a cart.
And navigating that cart through six blocks of morning Portland traffic makes me go This is awkward and kind of tough. And I'm not even pushing a stroller or using a wheelchair. And this is not even New York or Chicago or San Francisco, with so much more foot traffic. It's tougher for others.
Make it less tough.
Result: more often I'm standing to the side of the throat while I wait to cross a road, in case someone who needs that throat more than me shows up.
I'm getting better at this life stuff, I swear.