Re: How do you put your cups away in your cabinet?
I gave up on actual glassware years ago. We have a whole collection of plastic cups, they all stack nicely together and store mouth part down. Coffee cups are in a separate cabinet but also stored mouth part down, otherwise they'd be full of dust when we went to use them. We haven't made coffee in almost 10 months. Travel cups and water bottles are stored mouth part up usually with the lids stacked on top.
You can only make a mistake once. After that it's a choice.