I made a cheat sheet
I used to count out a pentameter on my fingers. Thank God, I didn't get any amputated. Now, that seems archaic and juvenile and I lost count sometimes as I got older.
I started Excel
I blocked out ten columns across and thirty rows down. I then made light colored blocks two rows deep. This helped make heroic couplets if I wanted them.
I saved it as a template.
Now I can either print some or call them up from my laptop desktop or on my phablet.
I will share it if someone tells me how.
Being a poet is hard enough. Why not let technology help?