Ending today, Sit4Less takes 15% off select Herman Miller Furniture during its Summer Sale. (Prices are as marked.) Plus, coupon code "FBS4L05" takes an extra 10% off. Even better, all orders qualify for free shipping. Combined, that's the best discount we've ever seen on Herman Miller furniture.

A best bet is the Herman Miller Aeron Chair in True Black (pictured) for $534.65 before the above coupon, $481.18 after. With free shipping, that's the lowest total price we could find by $54. It features ergonomic design, breathable suspension, and more. Note that upgrades like arms and adjustable seat angle cost extra.