I've never used the same pattern twice. I have no objection to doing that and there are a couple that I've been asked to make again using different colors. The only thing I will never use again is a pattern that has a Churn Dash in it. My very first king size quilt was a pattern using Churn Dash and I was so sick of that by the time I finished quilting it that I have a strong aversion to anything containing the Churn Dash. Silly? Probably, but with the beautiful patterns and blocks available I can avoid the Churn Dash. The one pattern that I keep avoiding is the Log Cabin and I love them. I keep thinking I'll mess it up. I've made blocks with so many moving pieces that I have to label them to keep them straight, so why do I think a log cabin will be my downfall? Dunno, but it is a challenge I will eventually conquer.