I also stock groceries when they're on sale, often use dried beans instead of canned, make most foods from scratch, batch cook food and freeze, etc. For instance, I cook 3 cups of rice at a time (yielding 6 cups cooked). Cool it, then portion it into sandwich bags that I load into a one gallon zip bag and freeze. When I take some out I put the empty sandwich bag back in the one gallon bag to reuse the next time I make rice.
Another tip - I buy a pound of peeled garlic when it goes on sale (if my supply is low). I mince it in my mini food processor with olive oil. When it's finely minced I put it in a quart freezer bags, press out the air and freeze flat. When I need garlic for a recipe I break off a little piece and carry on. I've always got garlic at the ready.
We don't eat meat, which is a huge savings in and of itself. DH eats some dairy, I eat very little (more during the holidays).
We rarely go to restaurants anymore. Less than once a month. Been there, done that, literally thousands of times each. When working in downtown LA, I went out for lunch virtually every day with co-workers or vendors. Same for him. It was customary in our industry during the 70s and 80s. We'll occasionally meet up with one of our kids or some friends at a restaurant and enjoy a meal together, but otherwise dining out holds little allure.
I never developed the Starbucks or other coffee house habit. When I want coffee out, I deliberately avoid Starbucks because their pretentious "in" language irks me. If I ask for a large black coffee, the precious "barista" (aka coffee pourer) feigns confusion and starts rattling off Starbucks-speak menu items. Pfffttt... You know what I want. Please stop pretending that when you learned "Starbucks" you unlearned English. Your company was started in freaking Seattle, for Pete's sake, and you're working a coffee counter. Pour me the big coffee, don't put anything in it, and get over yourself. Tip jar? After that nonsense? Spare me.
Rant over. Sorry I digressed.
Needless to say, I generally bring my own travel cup of coffee with me when running morning errands. Saves money and aggravation.
During summer we run fans until it's too hot, then turn on the AC. I can't sleep when it's warmer than 77. During winter, nighttime heat is at 66. DH can't sleep when it's colder than that. We can tolerate slightly hotter and colder temps during the day but aren't willing to be ridiculously uncomfortable. We can afford to turn on the heat and AC and would give up other creature comforts in favor of temperature comfort. Today's forecast high is a beastly 109Ā°.