Shop at grocery stores that accept bitcoin. Farmers markets are often good places to find BTC vendors, or you may have a "BTC vendor day" in your area. If you look up "Bitcoin in Tulsa, Oklahoma" or wherever you live, there are plenty of sites with maps of vendors that support BTC.
Use online sites like like bitrefill which let you buy gift cards with your Bitcoin, often with significant discounts. Pretty much any major retailer can be spent at this way
Use a "bitcoin debit card" which is essentially a custodial bitcoin account you put BTC into and when you swipe your debit card, it automatically converts your BTC to fiat to pay the merchant. This of course requires KYC.
Worth noting that most grocery stores in the US have coinstars, which you can use to buy and maybe also sell Bitcoin? Many others have Bitcoin atms. I believe these also require some degree of kyc, I haven't used them before.