I have found that you can use the "wavy/unsquared" plaids in things taht aren't squared blocks...use them on point blocks and it's not quite so noticable or use the fabric in applique" designs. Many times the plaids and stripes( especially crosswise) are not straight on the grain...go figure! You'd think the manufacturer would check this out, but then I don't think anyone has a "proofer" now days...and so much is made in other countries and for a dollar a day, they don't care about quality. Glad your bag turned out well. Cute purse!