Last night, I went to a Christmas party in the suburbs. The destination was off Route 40, out the Chelmsford-Tyngsborough way, down among the woodsy parcels along Dunstable Road. Now, is it just me or can it be said that every third person drives routinely with his or her headlights set to high-beam or “brights” as the default night setting? I’m getting older I admit, but I don’t remember having to squint and dodge as much in the old days when cars and trucks approached at night. The rule of the road is to click off the extra lights when another vehicle comes into view. Did that change in some manual that I missed? It is dark out there in the towns of Greater Lowell, so you need the added beams to find your way. I don’t want to sound like cranky Andy Rooney, but I’m curious about other people’s experiences. My friend Jack McDonough could have made an amusing radio essay of this topic for the old Sunrise program of WUML, 91.5 FM.