I usually row count on my phone but sometimes it's a pain. This handy little counter saves having to do that.
Between each of the clouds there are 10 large rings. To use them as a counter, simply pick one of the little weather symbols (which can handily be used as stitch markers) and move it along the rings for ever row or repeat. When you get to 10, you can then use another of the markers to keep tally and so on.
I've made these with lever back fittings so they can fit on your work as shown in the second picture, or if you prefer, they can slot over your knitting needles if you don't like them attached from your work. I've also added the option of having the clouds with pin badge backs on, these can be used on a project bag, or even as cute collar clips on cardigans!