Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Add Yahoo as a preferred source to see more of our stories on Google. Say goodbye to the woes of Christmas tree sap. Whether you have a mild case of sticky, sap hands or you look like Clark Griswold, ...

Dr. Elizabeth Yuko is a bioethicist and adjunct professor of ethics at Fordham University. She has written for The New York Times, The Washington Post, The Atlantic, Rolling Stone, CNN & Playboy.

Tree sap spots are sticky, smelly, and stubborn, and the unsightly brownish drips can absolutely ruin the look of your car, house, porch, or outdoor furniture. Even worse, tree sap can attract bugs ...