I see random rolls pop up quite cheap from time to time online. I've thought about this as well and tried it out on a 5inch roll of paper. The smaller roll is pretty easy to handle, and I just cut it using a rotary trimmer and stop guide at 7 inches. This was rc paper so it was easy to handle and cut, and I didn't notice any scratches from sliding it under the guide. Sometimes I would get an uneven cut but that could be trimmed later. One problem is that there is a curl to the rc paper, due to it being on a roll. I just store it in its original black plastic and cardboard outter box, and put that in a plastic storage bin.