Lowe's takes up to 40% off a selection of bathroom essentials. Plus, MyLowe's members bag free shipping on most orders. (Not a member? It's free to join. Larger items may incur oversized shipping fees; many items are available for in-store pickup only.) A couple of best bets:
Peerless Bayside Brushed Nickel 2-Handle 4" Centerset Bathroom Faucet for $39 ($10 off)
Kohler Cavata WaterSense Labeled Elongated 2pc Toilet for $179 (pictured, $50 off)
The planet will thank you, your local (overwhelmed) landfill will thank you. Even your budget will thank you.