What's a frugal trick you've picked up recently?

What's a frugal trick you've chanced upon recently?

I accidentally semi-reinvented the "trencher". Basically, in medieval times, food would be served on a slab of bread and that would kinda be the plate. Or, you know, bread bowls for soup and the like.

I have an air fryer, and I've learned I can line the basket in a large flour tortilla, and it generally keeps whatever I'm cooking/warming up from getting the pan too dirty aside from some easily knocked-out crumbs.

I hate washing things, and I hate wasting paper liners, so it lets me cut down on those, and I can just eat the tortilla.