Patterns - how do you use yours?

We're spending an awful lot of time at the moment working with our pattern pieces. We're currently also doing a lot of research into the best paper to print on to.

Which brings me to this question: What do you do with your pattern pieces?

Are you a cutter or a tracer? Having spent precious ££s on your pattern do you like to trace the size you need and leave the original intact or do you go for it and cut it out?

Traditionally, patterns are printed on very thin tissue paper. Do you find this easy to work with? Or do you find yourself transferring onto something stronger and thicker for longevity? Would you pay more for a pattern printed on better quality paper? (Incidentally, there is a very good tip over here on the Coletterie blog which talks about reinforcing patterns with interfacing!)

We'd love to know your thoughts!