Chip Gaines and Joanna Gaines are still managing to find new things to do together, even after more than 20 years of marriage. The couple recently decided that they want to get in better shape, and are using it as an opportunity to spend time together in a place they never have before — the gym. “We joke that we’ve known each other for 25 years and we’ve never once worked out together,” Joanna told People. “Last year I said, ‘Chip, let’s start working out because I want to be young for the kids.’ I feel like every choice I make now will affect me at 70, and I don’t want to wait until I’m 70 to be like, ‘Oops, I need to fix some stuff.'” Chip and Joanna tied the knot in 2003 and share five children. “We just got into [working out], and it’s a totally different thing for us,...