I lied to my wife and told her she has on the same dress as the girl at work.

My wife has a white dress with blue flowers. I have a co worker who wears the exact same dress to work almost everyday. It's such an easy thing for me to just say "Hey honey, you have the same dress on that Michelle always wears". She'd laugh and ask if that's a problem, and I'd say "not at all" because I know she's not even aware of Michelle. She thinks she's unique and that nobody else owns the dress she's worn since 2010. She would probably get really insecure about it if she knew, but she'd never know because I'm Michelle's dress twin.