DEAR ERIC: I love to send holiday cards. On my list so many brides opted to not take their husband’s last name. It was no problem to address Mr. John Smith & Ms. Jane Doe. Now kids have come along. Am ...

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 ...