An incomplete list of Memorial Day Weekend sales. If you know of any others, please comment and I'll add them to the post. This list contains some affiliate links.
Synergy Organic Clothing: 25% off with code, twentyfive, through 5/29.
PACT Apparel: 25% off with code, hellosummer, through 5/30.
ARO: 25% off with code, memorial day, through 5/30.
Accompany: Up to 30% off sitewide through 5/29. See site for details.
Threads for Thought: 40% off sitewide with code, memorial40.
Ember & Aura: 40% off sitewide through 5/29. No code needed.
Eileen Fisher: 15% off sale items with code through 5/29. No code needed.
$25 off your order with code, efdress, through 5/29.
Hackwith Design House: 20% off sitewide with code, memorial20, through 5/29.
Alter Eco: 15% off with code, memday15, through 5/29.
Indigenous: 20% off with code, 3daysale, through 5/29.
Garmentory: Up to 70% off select items through 5/29.
Schmidt's Naturals: 30% off your order with code, anniversary, through 6/3.
LA Relaxed: 30% off select items with code, memorial30, through 5/29.
FashionABLE: Free shipping with code, summer, through 5/29.