Best Poker Advice ever?

[ACW]

Two things turned me from a hopeless fish to a winning player, which allowed me to develop my game without it costing anything :

1. In Sklansky's Holdem Poker I read something like "If you need to read this book, don't even think about playing no limit".

2. Play tight.

Later I learnt the third key :

3. Use good bankroll management.

With these three rules, I was able to grow my bankroll while I was learning, rather than the more usual paying to learn.