Let see....
1. Measure twice and cut once (believe it or not I started to type this one backwards, does that tell you something)lol
2. Always close the rotary cutter!!
3. The seam ripper is my friend.
4. Try something new sometimes, a new technique, a color you don't often work with etc.
5. Check with this board often it is an endless thread of knowledge, inspiration and great people
6. Finished is better than perfect, but I try to make each project slightly better than the last
7. Quit when you are tired (this is one I really have to learn to follow better)