Recently I realized I'd gone a very, very long time on my current strop without a single nick. I know because when I buy them I write the date on the back. It's not like I have been trying to set a record, but today it struck me that this "new" strop is showing its age very nicely, seems wonderfully "broke in" and it's fun to use… and doesn't have a single nick.

What's the longest you've gone without nicking a strop?