Roomba 4210 Robotic Vacuum $224
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Linens n' Things has the iRobot Roomba 4210 Discovery Robotic Vacuum for $279.99 but it is only $223.99 after 20% off one item coupon code 186514392371 (valid through 5/6). Shipping adds $24.99 so consider free in-store pickup. Simply press "clean" and the Roomba cruises around your home and vacuums for you. This is the best price on the 4210 I've seen this year. LNT has several other Roomba models available. (Instructions »)