Blinds.com takes 25% to 40% off Bali and Levolor blinds via coupon code "SAVE". Alternatively, get 30% to 35% off orders of $750 or more via coupon code "SAVEMORE". Plus, all orders bag free shipping. Deal ends May 10. A couple of best bets, with prices after "SAVE":
Bali Diamondcell Light Filtering Cellular Shade from $41.30 (pictured, $14 off)
Levolor Vertical Fabric Blind from $62.18 ($27 off)
The planet will thank you, your local (overwhelmed) landfill will thank you. Even your budget will thank you.