Sewingpup, I have a Stripology ruler and LOVE it. Funny, I bought it before I started sewing quilts at a sewing and quilt expo. I knew I wanted to quilt but was more into clothes sewing at the time. It was such a good idea, I felt I couldn't pass it up. It is the large one and I am so glad I bought it! It is so easy to cut strips so I just don't see the need to buy jelly rolls.
That said, I do have some jelly rolls and keep them together. I pondered whether to separate them when I got a new cabinet a while back and was sorting them, along with my fat quarters, but decided not to. I just couldn't bring myself to break them up.