Did you know you can make HST's (half square triangles) with those jelly rolls without losing your math?
I found 2 tutorials that explain how to. Here's one:
And you can also use the Omnigrid 96 if you don't have the Easy Angle.
Here's a video using the Omnigrid.
Now I can make lots of HST's with my left-over jelly rolls. Imagine all the