Macy's takes up to 50% off a selection of beauty items. Plus, all orders qualify for free shipping. A couple of best bets:
Urban Decay Troublemaker Mascara and Eye Pencil Duo for $19 ($9 low)
Shiseido 5-Piece Beautiful Definition Collection Set for $42.75 (pictured, $14 low)
The planet will thank you, your local (overwhelmed) landfill will thank you. Even your budget will thank you.