I've been playing a few games and my friends and I have used some tactics that seem rather odd.

For eg: With 5-6 supply Lannister can have four knights on stoney sept and give them a 1+ support each turn. This supports every area within Lannister territory making it impossible for anyone to attack.

Does anyone else have rather quirky tactics?

How does this tactic work for you? Defense, yes, but are you able to attack anyone else?

haha yes that is the downside. At any time though I can use two of them to stagger into one of my own territories with a march 1+ so the enemy won't know if they have to defend or not.