Tips and bits and pieces
Have plenty of bobbins; a couple for thread, one for copper wire, one for lead wire, one for everything that you use regularly.....
Use the best quality products you can afford;
I struggled for years using low quality products, cheap lead wire that always broke, a cheap vise that didn't hold the flies securely enough, low quality hackles, often tying was a chore. Experience is a great teacher, I found that fly tying is so much more enjoyable if you use good quality products, and the results much better.
Skimping on materials;
If you want good results use the right product for the fly