I have 3 kinds of row counters...the only problem is IF you forget to click!
I keep track of rows with the counter, but as a back up...I keep track by installing little threads for every 10th row.
Here is a photo of some of my work...you can see the little red threads, can't you?
Sometimes, when working with something like an 8 row repeat...my threads keep track of repeats instead of 10 rows.
But if I'm knitting rows and rows of a stitch pattern...then I mark every 10 rows. It works!
The black threads were keeping track of one thing, the red threads were keeping track of something else!
On this CALLUNA cardigan (in progress), I'm keeping track with little brass pins!