Bought a couple of jerseys and some memorabilia paying with lightning at the Canadian Bitcoin Conference. Also, use it to pay for my VPN and bought my Umbrel with it.
Mostly used sats for donations but I have purchased a tshirt and hat with sats and bought some artwork with sats. Oh and chores around the house such as washing the car or helping bring in the groceries which I pay my kids in sats to complete instead of a fiat allowance.
I've purchased some services and bots for online games via discord servers. There are different methods of servicing payments, but the most common and convenient that I've used was Coinbase Commerce. Essentially, the vendor sends you a link to Coinbase's site, and on the page you'll be given an address and amount to send. Once received, the vendor gets notified, and they utilize various other discord bots to facilitate the rest of the transaction.
It's quite sophisticated, yet it's streamlined and very easy to use. When I first tried Coinbase Commerce, it was a eureka moment for me as crypto was legitimately providing a niche service whereas there was no viable alternative. Vendor's could accept in-game currency, but they risk getting their accounts banned; some vendors are from very poor countries and cannot accept USD or other foreign currencies; transactions need to be quick and verifiable as there is a high level of trust involved.
Directly with BTC, mostly donations (Signal, TOR, for instance), a t-shirt, my VPN service. Using bitrefill I bought several things in Amazon, including the Bitcoin Standard book.
Mostly use it in Costa Rica to pay any services such as topographers, repair services, any food purchases on local farmers markets, local restaurants, airbnb rentals (via Bitcoin Jungle), even used it to purchase small pieces of land. Plus for sat micro donations.