The longest I've gone without shaving my beard was about 2 and a half months. I kept the neckline maintained during that time. Never grew it out again, that was about 2 years ago. I've always had at least a goatee and stache, but this year has been full of experimenting with different styles. It's also the first year that I've started to enjoy being clean shaven. Prior to that, I didn't care for how I looked without any face fur.