All I Needed to Know in Life I Learned in Quilting Class

Use a 1/4-inch seam and stick to it. Many small errors become a big one at the end.
Always close your rotary cutter so no one else is hurt by your carelessness.
Avoid easy, shortcut methods. Do things the correct way because in the end, the quilt will be better.
Fractions are your friends. If not, use a calculator.
Precision counts.
Don’t trust every ruler. Make sure it’s accurate before using it.
If things aren’t working right, re-thread your machine and start over.
Have a good ripper. Mistakes happen.
Same color materials make a dull quilt. Add contrast to liven things up.
Start with the hard blocks, then everything else will seem easy.
Share material. Everyone gets something good out of sharing.
Practice makes perfect.