I often get multiple uses out of paper towels/napkins, foil, paper bags, and plastic bags....but I do it because Americans are the biggest producers of waste on the planet. It's not much, but I figure every little bit held back from the trash has to help somewhat.
Thankfully our garbage companies compost for us so we just add the food scraps to the garden trimmings once a week. Sadly, landfills are filling up fast everywhere and the closure of Chinese recycling plants means that a lot of collected plastic and cardboard is just dumped by recycling companies into landfill.
I make broth, but that's because I love to cook. There is nothing better than homemade stock. Commercial ones are way too high in sodium.
My spouse is the more thrifty one. He compares prices on websites, and hunts for bargains on eBay.
I don't usually bother. When we were doing our regular driving trips all over the region, I did practice thrift in selecting hotels. We don't golf, play tennis, use spas, or give a darn about room service - all we need is a decent bed, clean bathroom, and fast Wi-Fi.
We usually looked for Hampton Inn, Best Western Plus, etc. But if we only had a choice between Motel 6 and a Sheraton or Marriott, I went with the latter.
No kids, average expenses, a solid 3-legged stool as spouse has good pension w/benefits, all fully assigned to me should I survive him. Good financial planning approved by our CFP ensures old age expenses will never be a problem for us.
A full 25% of our monthly income is discretionary - since no traveling
- so lots of room to cut back if need be. We're spending some $$$$ for work on the house, but we'd have to do most of that anyway. Tucking in some extras keeps the old cottage salable in uncertain RE times. The RE market is hot now, but who knows what might happen?