I'm curious what everyone else does. I used to wait until a belt actually failed, but after losing a Saturday because I couldn't find the right replacement locally, I've started keeping a spare on the shelf.

Do you keep extras, or do you just buy one when it breaks?

I ended up ordering mine online because it was easier to confirm the OEM cross references than calling around local stores: https://www.amazon.com/Mower-Belt-405143-Compatible-Husqvarna/dp/B07XJ7BJ2W

Interested to hear what everyone else does.