OfficeMax cuts up to 50% off select office chairs and seating during The Big Chair Clear Out Event. Even better, coupon code "SAVE20" cuts an extra 20% off. Plus, all items but one are $20 or more after coupon and qualify for free shipping; otherwise it starts at $9.95. That beats our mention from last week (which had up to 50% off and free shipping, but no stacking coupon) and is among the best deals we've seen on these items from OfficeMax, yielding many price lows. Deal ends September 14. Some best bets, each with prices after coupon and free shipping: