Lorak
*leekspin*
Ignore Chris's answer.Sure? Cause I'm sure I heard it somewhere or read somewhere that you can Pal Park several times.. Must have been wrong then :/
Set the date one day ahead, put in a different cart you don't mind not Pal Parking on. It'll ask about synching the date, no PP for 24 hours, blah blah. Say yes. Wait for it to finish, power off. Put in the game you want to Pal Park on. Pal Park those Pokemon, recatch them. Repeat ad nauseum.