Publisher Ellora's Cave is apparently going to make the rotating sale a weekly thing, and the latest offer is 20% off all e-books in two of author Ann Jacobs' series when you buy directly from their store, which offers DRM-free MultiFormat bundles.
From March 21st until April 4th, the sale titles will be:
The discount is automatic (eligible e-book titles handily marked with SALE in the title), no coupon required, and stacks on top of Ellora's normally direct-discounted prices as well, so some of the books can end up being really cheap, such as the 4th Lawyers in Love book, which is a mere 79 cents (99 cents on Amazon).
Also, Mari Carr's Wild Irish series is
still on sale until March 27th, if you want to get it.