I love how cozy and simple a monochromatic ensemble can be. When doing one color make sure to keep it interesting by layering in different textures and patterns like this chunky sweater and subtly striped scarf. To jazz it up a notch add some interesting shoes like equestrian or cowboy boots. To tie the shoes in be sure to add a belt or other accessory in the same color.
Green Skinnies; Pilcro by Anthropologie (Savers $5.25)
Sweater; Charter Club JC Penny? (Savers $3)
Scarf; H&M (H&M San Francisco years ago $6)
Boots; Western Warehouse (Gift years ago)
Belt; Unknown Brand (Savers $2)