Dell Small Business cuts 20% off select desktop and notebook accessories via coupon code "W2BQ$LCJSH11CN". (It does not stack with existing discounts.) That's tied with our mention from three weeks ago as the best percent-off discount we've seen on these items from this merchant since our January mention, when the discount stacked with existing discounts. Shipping starts at $6.99 and sales tax is added where applicable. Coupon expires September 1.