We made our goal of spending $400 or less on groceries last month! I'll share a longer post about that later this month, but I think that definitely falls into the category of frugal things. Sam at Frugaling made his $200 goal, too.
I went by the thrift store last week, on the day I'd normally go to the grocery store but we were out of money for that, and found a few good things, including a 3-gallon water container we can use for camping, a pair of Levi's for work for $8, and a simple black skirt that will be perfect for travel (although not for camping).
Eric cooked with three pieces of meat from the deep freeze, using what we already have instead of buying more. We made beef broth using bones we already had, and then used some of broth to make soup with other things we already had.
We're still making our pan pizzas, but we switched to vegetarian toppings, which definitely makes the pizzas more affordable.
We did all that caulking ourselves for the cost of supplies only. I have no idea how much it would have cost to hire someone, but I do know if you tried to hire me for the job, I'd charge an arm and a leg. If you doubt that doing home maintenance yourself is worthwhile, read this post from Mr. Money Mustache, "Why Your Spare Time is Worth Way More Than $25 Per Hour," in which he goes over the multiple layers of benefits you get from doing things yourself. I think you still get some of the benefits even if your husband does a lot of the work. At the very least, you're keeping it in the family, right?
I took my lunch to work every day last week! Usually I end up buying it at least once a week, but not last week. I did get one free lunch, because of a meeting. Who doesn't love a free lunch? Especially if you have to have a meeting.