I thought the hardest part of a bargello was sewing all the strip sets!...so boring. Organization is the key, like the others have said. I cut a strip across the strip set.....so that you have a piece of all the different fabrics....numbered each different fabric piece according to your original layout....then tacked it up on the wall directly in front of the sewing machine so I could see and refer to it easily. Since each strip you cut and sew will split at a different point, it makes it much easier to find a fabric that corresponds to a number. I only cut a few strips (from the strip sets) at a time...it made for much less confusion and gave me and the eyes a break from sitting non-stop at the machine. After you get a few of the strips sewn, the pattern will start to emerge and make it easier to "know" that you are sewing the correct strip. Just remember....if you have any questions, we will all be glad to help!