Dean definitely expected more of a fight, but he was grateful for her attitude. He really didn't want to open the can of worms that was his feelings about Jo and maybe even about Faith too.
"I'm going to talk with Faith tonight, see exactly what she's thinking. I'm guessing she hasn't th0ought of holy water balloons." Dean flashed a little smile. For something so simple, no one had th0ought of it yet, and the idea had merit. It wouldn't destroy the enemy, but it would certainly hold them back at least a little, and with a little luck, it would hold them back enough to give Faith a window of opportunity.
The only flaw was that not all Lucifer's followers were demons, and a salt and holy water combo wouldn't do much more than annoy them. Still, it was something, and it would just have to be enough.