Here is something I posted a while ago. This also works on folded fabric for strip cutting. Just that one little cut in the end of the material really works! Get some fabric out right now and try it!
let me know how it works for you.
http://www.quiltingboard.com/main-f1...p-t136061.html
peace
EDIT: Nothing needed on the ruler. No rubber cement, invsigrip, weights, rubberbands
No cost!