I have a tradition of buying some crap to eat.
Having had to live on rabbit food for several decades due to health challenges, even plain fries are a treat for my taste buds, but when I buy something physical gear-wise (not software), I love to celebrate with a burger or some canned tuna & mayo on a bread roll or somethin'.
It "solidifies" the transaction for me, and makes it all-the-more worthwhile. It's the ultimate excuse to eat some crap.