Why not over this Xmas season, make it a habit to flash the landing lights as a simple greeting.
If you're flying back of the clock, why not greet fellow aviators who are doing the same thing. Who knows..it may just catch on.
It would be nice to build up a camaraderie amongst those of us who are not lucky enough to be spending time with our families at this time of year.
A very merry Xmas to my fellow aviators!