What is a sentence for penny pinching?

Tired of her husband's penny pinching ways, she bought herself a gorgeous diamond and booked a trip to Tahiti.

Once Dad lost his job, we survived by penny pinching and eliminating nonessentials.

Thanks to Mom's penny pinching throughout the year, the children have many Christmas presents under the tree.

We're able to raise eight children on one salary because my wife is very good at penny pinching.