People have been putting bumper stickers on their cars since the 1940s, when a Kansas City screen printer named Forrest P. Gill invented them. Gill got his hands on some adhesive-backed paper and ...

We may receive a commission on purchases made from links. Stickers on car's windshields are one of the simplest but most effective ways of relaying information. For instance, in Texas, stickers are ...

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 ...