If this is your job, you aren’t tracking 6 lids, you’re tracking all the lids, probably in an entire section of the city. Possibly hundreds. Being able to look at a glance and see if you’ve already done it is clutch.
Next time it’s time for a check, you put them back on the right way.
You’d have to be pretty dumb to not be able to keep track of 6 lids in a line.
If this is your job, you aren’t tracking 6 lids, you’re tracking all the lids, probably in an entire section of the city. Possibly hundreds. Being able to look at a glance and see if you’ve already done it is clutch.
Next time it’s time for a check, you put them back on the right way.
If your job is to check hundreds, you’d keep track of the roads you’ve checked. There’s no need to keep track of each individual spot.