I use the Gear trackers to stay on top of bike maintenance - flagging reminders when cassettes and chains hit certain amounts of mileage for cleaning in addition to replacement. Right now I just retire "Gear" like "Dirty Chain" and create a new one to reset the counter for cleaning so I can keep the actual mileage on my chain running to know when to replace it.
It'd be great to have a sort of trip odometer you could reset in addition to the total mileage or hours on a piece of gear, or have a Maintenance category that behaved this way. I could see using gear that resets instead of retires for reminders to charge lights or HR monitors after a certain number of hours in activities in addition to the mileage-based cleaning and maintenance I'm using it for.