Getting a pair of chocks for the wagon. Lot of hill parking going on. Want to get a set with the rope between then though, for the whole "your flight to Rio is about to depart" flourish when you yank them out.
You know how there is a website for eveything? Yes, there is a chocks.com. Or I could do what Pops does; just keep a pile of wood in the back and throw a log under the back tire...