The light side

From now through Feb. 28, Krispy Kreme is giving customers a free doughnut for every cup of coffee purchased, this according to Travel and Leisure Magazine. The doughnut giveaway is to promote the relaunch of their coffee line. 

Ever wonder why airplanes dim their lights upon takeoff and landing? Travel and Leisure Magazine explains here it. 

And what about those little bumps that are showing up on sidewalks and street crossings? Get the scoop here.