I am adding a spray bottle on my to-do list for this weekend.
I have a 1 1/2 year old male rescue who came from a home with 2 big dogs. My 6 1/2 year old female is not too happy with his method of play. There have been a couple of fights.
It is getting better but the spray bottle is a GREAT idea!
We only use a spray bottle for too much 'digging' on the couch, Topper is the only one who occasionally gets overly enthusiastic. If I can't reach the bottle, I make a "phsst" sound, like a spray, and he will stop, turn and look at me. Rarely he will notice that I don't have the bottle and go back to digging, but just the sound of the bottle usually stops the behavior.
Of course, now that he is going deaf, I amy have to buy more bottles again!