No, but perhaps I need some rules! I've just started a top that requires totally accurate cutting and seam allowances, or it's going to go badly wrong. It's a while since I last did anything like this, and I'm discovering that I've perhaps recovered a bit TOO completely from the perfectionism that spoiled my first few years of quilting - I'm realising that I've become a bit sloppy with my measuring and seams, and too content to bodge when necessary. I can't get away with that this time, and I'm enjoying the challenge of going back to taking more care over accuracy - hopefully without returning to the bad old days of obsession, and tears if I got it wrong!