I bought a sponge of sorts advertised as for getting pet hair out of bed sheets. I've no pets, but stress makes me lose tons of hair and I've long hair. It works like marvel for my own hair! It's so life changing! I love it!
I was also able to get a mini white paint with a mini roller for practically nothing to finish off the wall fixes I was doing.
I also got a tiny brush meant for keyboards and discovered my keyboard was super nasty with my hair on the inside. >____<
I'm not a boomer but I could write you a big long post about "touch" interfaces as a general thing and what a problem they are. (This isn't it.)
People want to control their lights from an app on their phone. WHAT. That is the worse possible way to control your lights. Dial, knob, button, switch... all are better.
Do not get me started on clock radio interface designs.
In summary:
Right:
Wrong:
You think it's bad driving a car, imagine being in battle with the borg and you are using this freaking touch screen.
Oh and for calculators, this is another answer to the original question. At a thrift store you can get a calculator with a printer for $5. Nobody wants these things. You can get a really nice one. They are amazing if you find yourself recalculating the same things, or needing a number later but you didn't write it down. Or wondering if you did the math properly so you have to re do it. You can feed the same strip of paper through repeatedly. I'm still working on the roll that came with mine. It just occurred to me you could probably re use those 1 foot long receipts some chain stores give out and never have to buy paper for it.
Do you erase them or what?
the paper? you can't erase it, it's printed with heat.
just feed it through the other way. I just rip pieces off the roll.
I just use 9 key/excel. Guess it's not as portable as a physical calculator.
If you are doing spreadsheet type stuff than of course excel... well.. excels.
But in case you are just using it as a way to type in arbitrary formulas, you should check out speedcrunch (GPL) for linux mac windows. You can just type in formulas and they stay in scroll back like a terminal. Instead of being constrained by mimicking a physical calculator, these people have actually thought about what would make a calculator functional on a PC. And since it has persistent history (unless you delete it) it does have some benefits of a printing calculator.