Binance, Crypto dot com, and possibly others have a debit card that automatically concerts fiat purchases from BTC for you. I just put what I need for the week there. And I also use Bitrefill.
Discussion
I have a Binance card. Never once have I used it, for the reasons I mentioned. I just don't feel comfortable with the idea of being the 2023 Bitcoin Pizza Guy.
Which in our case would be even worse, because unlike Pizza Guy, we can't just turn on our 2010 home laptop and mine 50 BTC.
That makes zero sense. Because 1. You were gonna buy the pizza anyway.
2. Pizza guy paid excess premium and didn't replace the sats. Imagine if he had been encouraged by someone accepting it and bought 100k sats to hodl.
3. Laziness is why you haven't used the Binance card, I was the same, I kept mine for an entire year and then used it one day for a 40 buck purchase for fun. It worked smoothly, I was so happy. As a result I increased my stack 10% by putting whatever spending money I have into BTC. And that 10% extra over time means I am DCAing into Bitcoin even with my spending and I'm supporting the other 90% of my stack. Did I waste 40 bucks? No, I was gonna buy that item anyway.