I've gotten into the habit of going to a salon to get my eyebrows threaded every two weeks. If I wait any longer, I get all overgrown which makes it harder to do the job (and more painful). My girlfriend said she hadn't plucked her eyebrows in many years, because all the tweezing she did when young made them stop growing. But one day she went to the salon with me and tried getting threaded because I like it so much. Now she claims she needs to pluck her eyebrows again because the action of threading reawoke the follicles-- just the reverse of conventional wisdom! So we both went and got it done today.