Have you ever let a certification expire?
I have quite a few CompTIA's most of them don't expire, A+, N+, Server+ however when I got Security + it was after the 201l deadline. The certification expired today, no biggie I just never had this happen before. I need a few to roll off my resume to be honest. Anyway have you ever had an certification expire? If so did you regret it or was it no big deal.