1. Using a Metronome (often on 2 & 4 for swing)
2. Using a Tuner (for about four minutes during one half a long tones exercise)
3. Long Tones Exercise (by George Young)
4. Jackie McLean Scale Book
5. Classical Method Book (usually Rubank)
6. Jazz Phrases Book (David Baker right now)
7. Transcription Book (currently Stanley Turrentine)

I use these things everyday, usually in this order.

For the last three, I listed the three I’m currently working on.

Those are a matter of personal preference and I have a number of those things.