I was there during the busy MLK weekend, and found that playing Sorcerers was a great way to pass the time between FP+ windows instead of waiting in very long standby lines.
Also, the outpost in Frontierland/Liberty Square was much less crowded than the one at the Fire Station on Main Street. It's behind the Christmas store, near Tiana's meeting spot. So if you do get addicted, consider using that location for picking up your daily card pack.