On what do you spend too much money?

Fresh food.

The $2.49 loaf of bread that gets tossed after five days with several slices uneaten, the week-old head of $2 lettuce I used only a few leaves from before throwing out, the $3 unopened can of soup that I got rid of because I couldn't remember when I'd purchased it.
If you add it all up over the years, I must have misspent hundreds of dollars on food that went uneaten because it was no longer fresh.