Tracking Round Count?

I see posts fairly often, mainly in specific firearm subs, where people will say 6K rounds no issues or just hit 550 rounds...

What does everyone use to keep track of round counts on multiple firearms? With over 20 that I shoot somewhat regularly I can't remember what I've run through each one but would like to start keeping track. Just wondering if anyone is using anything other than a pad of paper maybe.

submitted by /u/Rex450se
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