Adidas.com: Raf, Y-3 and Rick Owens 30% off
That's a deal on those airbrush Margielas for $257 shipped. I ordered black pollocks from them last week for $260, and they cancelled them 5 days after purchase saying they were defective.
I've consolidated as many of the sales as I found - probably some things missing, but I'll keep on updating:
Spring/Summer 2015 Sale
A.P.C. on sale now
Acrimony (DRKSHDW, Gitman, Robert Geller, etc.) – 33% off sale using FINALCALL (ends 29/05/15)
Acne Studios 40% Acne from Acne
The Archive SF (for your goth ninja needs)
Barneys (Raf Simons, Margiela, etc.) – Up to 40% off
Bench and Loom 30% off most items and with code "DAD30"
Blue Button Shop (Kapital, Nanamica, etc.) – Up to 40% off selected items
Carson Street Clothiers - up to 50% off
Coggles End of Season Sale on now! | Shop up to 40% off
Coverchord 30% off accessories and bags with Coupon code CCMYBG30
East Dane (Robert Geller, Gitman, Incotex, etc.) – Up to 70% off
END Clothing get 25% off with code SALEPREVIEW
Farfetch sale ongoing, and use code x10june15 for 10% off sale items
French Garment Cleaners - Sale 25-40% off.
Graduate Store - Here are some A.P.C. / Mackhintosh / Junya Watanabe / Baracuta / BBC / Stüssy / Saturdays NYC / OAMC / Converse in Sales at 20% off !!
HLorenzo (Devoa, Miyake, AnnD, etc.) - 30% off sale using SS15TAKE30
Jonathan & Olivia (DRKSHDW, Acne, Our Legacy, etc.) – 20% off & higher selected items
Maison Margiela – 50% off sale
Matches Fashion (Brioni, Marni, etc.) – Up to 50% off
Mohawk general store sale on now.
Notre shop 33% off with code 33OFF
Odin Spring Sale is now on.
Oki-ni (Margiela, Raf Simons, etc.)– Up to 40% off sale using PREVIEW15
Owen shop - sale up to 40% off
Mr.Porter - Sale up to 50% off
Roden Gray - sale ongoing with new items added.
Sneakerboy sale to to 50% off!
ssense (Maison Margiela, Rick, etc.) – Up to 70% off selected items
Steven Alan (Steven Alan, Reigning Champ, etc.) – Up to 40% off selected items
Stylebop (Blue Blue Japan, Rick Owens, Rag and Bone, etc.) – 30% off full price items with PRESALE15
South Willard - sale up to 40% off
The Great Divide - 25% off with code PRESALE25
Union LA – (Off White c/o Virgil, Ganryu, Carhartt, etc.) – 30% off selected items