Keri Russell left her boys Shane and River at home on Sunday when she stepped out to run a quick errand in Brooklyn. She appeared to be enjoying the unseasonably warm weather in her cute plaid button-down and cuffed jeans. Keri's got her outer-borough style down pat, but she'll soon need to get into something a little more red carpet-ready - she'll be making the rounds next month before her Leaves of Grass hits theaters on Christmas day.