And just to prime the pump a little, the 9 cross-job skills an FC of mine recommended were:
- Flawless Synthesis
- Careful Synthesis II
- Maker's Mark
- Hasty Touch
- Byregot's Blessing
- Tricks of the Trade
- Rumination
- Comfort Zone
- Steady Hand II

As I've been leveling through the 20's and 30's, I find I'm mainly using:
- Hasty Touch
- Careful Synthesis
- Tricks of the Trade
- Manipulation
- Steady Hand II
- Waste Not