Stand Still. Combined with reach and Lunge you can lock down a really large area.
It's a long ways off, but building up to Whirlwind Attack (needs Dodge, Mobility, Spring Attack, and Combat Expertise) might be worth your while.
On of the more colorful backstories of a character I've GMed for was an Alchemist that had to resort to adventuring after a failed attempt to burn down his newly-inherited family alchemy shop for the insurance payout.