I never took a literal count, just kind of a tip of my hat to the ones who still have them on.
That's one reason I leave mine up so long, for people who do this very thing - look for lights still on while driving. Mine are still up but not on.
You never know though, I might just go turn them on tomorrow, or maybe the next night . . . . . . or the next . . . . . or . . . ..
"Unless we make Christmas an occasion to share our blessings, all the snow in Alaska won't make it 'white'." -- Bing Crosby