Hardly an uncommon opinion here but it would have to be the Discworld novels by Terry Pratchett. Rereading them is still fun but nothing hits better than some of those jokes and concepts the first time you read them.

Peak Harry Potter was amazing. I got into when only the first two were out. As a teenager I read The Order of the Phoenix in one day, from the morning nonstop until the middle of that night. Good times.

Also former pizza driver, can confirm. Years after I left I still remember the good tippers and occasionally think of the best ones. That might have been the high point of his time there.

I had some mistake tips that were given back and I understood, but there's still a little disappointment.