You can get online stitch counters which could be handy except that you need to make sure you've got your smart phone or tablet with
Knitting Hack - Row Counter, yarn
Simple Crochet Ribbed Checker Beanie - FREE Pattern + Video
How to count stitches and rows in crochet - The Blog - DK
Beginner Knitters: How to Count Rows
50/30PCS Knitting Stitch Marker Rings Knitting Crochet Locking
Crochet Tip: 1 Simple Method to Counting Rows - Left & Right
Simple Printable Row Counter for Knitting and Crochet, Digital
Row Counter - Knit and Crochet - Apps on Google Play
Crochet Stitch Marker Styles And How To Use Them, 46% OFF
Easy Knitting and Crochet Stitch Counter
How To Count Your Crochet Stitches - Nightly Crafter
The perfect row counter so you can just knit., No stopping to pick up a pen and make a hash mark, No forgetting to click the clicker, No searching for
Yarn Ball Knitting Row Counter
Knitting vs. Crochet: What's the Difference? Which is Easier