Tally Counter, 4-Digit Clicker Counter, Metal Hand Tally Counters Clicker Pitch Counter for Counting, Knitting, Coaching, Golf, Lap, Fishing

Honestly, I just use a stitch counter. Mine came in a 2 pack and I thought I'd use one for rows and one for stitches. I ended up just putting stitch markers after every 25 or 50 stitches and keep track of it that way, and use the stitch counter for my rows.

I just use a basic tally counter. I don't have to put anything down - just temporarily take hold of the hook in my left hand that's holding the yarn, bump the counter with my right hand, and take the hook back in my right hand, and continue.