Yes Ma'am, I Made Sterps.

For the cost of two dollars and ten minutes, I have made a set of clip-on stirrups to keep my pant legs in my boots.  This will make my winter easier!  Here goes:

1. I buy four little grippy clips designed to bite and hold whatever cloth you pinch them to.  They cost $0.49 each.
   
2. I sew them to stash woven elastic: two elastic straps, each with a clip on each end. 
   
3. I clip them to the bottoms of my pants legs and under my heel, like stirrups. 
4. I put my boots on, and the pant legs stay tucked where they belong! 

stirrups in progress

stirrups in use

In the picture below, my left leg does not have the stirrup, and the pant leg is riding up, not staying in the boot.  Bad pant leg!  Down!  My right leg is in its stirrup, and the pant leg stays tucked.