The manicure is a $25 billion habit Katia Beauchamp wants you to quit

It’s 4 p.m. on a Sunday. You’re at the nail salon because you have a meeting Monday morning that requires you to look polished and put-together. In theory, this is supposed to be a relaxing part of your weekend. But in practice, you’re thinking about how this is eating into time you’d spend grocery shopping and prepping your kid’s lunch for tomorrow. To add insult to injury, when you finally pay, the mani-pedi comes to more than $100 with tip. [Photo: Buff Beauty] For a large share of…