Just chiming in to offer mid-month encouragement to everyone! I started doing No-Spend February about 15 years ago, when I was desperately seeking FIRE. I was inspired by Amy Dacyczyn, the famous Frugal Zealot. Financial blogs were not yet a thing. Her books were crazy inspirational, but not especially interactive. Every February, I would re-read her book(s) and shut off my spending completely. I had some amazing things happen as a result of my FF's. Now, seven years post-FIRE, I'm totally glad I did them, but they were excruciatingly lonely! I am so glad this community exists, and this thread in particular. To each and every one of you who is participating, I want to tell you that this effort has a huge payback and is worth every effort. Even if you fall off the wagon, it will be worth it. Climb back on and keep going.
Here's a tip that helped me. It seems that every year I bought something I intended to give as a gift and for whatever reason didn't or bought something for myself while holiday shopping that I didn't actually need, but was going to keep anyway. Around mid-Feb, when I was running low on fresh fruit and veggies, I'd look around for something unused that I could legitimately return. It helped that I'm a huge Costco fan and their return policy is so generous. Also, it's easy to be lazy about wrapping up those post-holiday chores, like returning unused gifts. Typically it would be under $50, but that buys a lot of fresh produce and milk. Even a small infusion of cash at this point in the month feels like a lottery win.
Caveat: Work at Nordstrom for a decade and took scads of bullshit returns. You might say I'm somewhat returns adverse as a result. It's easy to stockpile unused gifts toward future gift-giving, but maybe you don't need to. I am not suggesting you do any bullshit returns, but that making the effort to wrap up any post-holiday details that will put a little bonus cash in your budget. It is worth the effort.
Which reminds me, I still have three Christmas gifts from Costco that didn't work out that I need to take care of. The formidable January out-the-door return lines have mostly abated, so I need to get off my duff and get it done....