5. Don't overdo it.
Try to stick to three or four lifts per workout. Keeping your workouts short helps you take advantage of hormonal surges. When you do too many exercises in a session, at least some of them get done half-assed. All you need is one main lift per workout (one of the big four), one or two assistance lifts (for keeping the body in balance and further strengthening the muscles that perform the main lift), and then core or specialty work at the end (ab exercises or some forearm or calf moves, depending on your goals). Doing any more lessens your results.
6. Think five.
You should rotate many different rep ranges in your workouts, but sets of five seem to offer the best blend of muscle size and strength gains. If you're pushing through one of the big four moves, you'll find that your form often breaks down after five anyway.