I have a little technique I've been using for a few years since I absolutely hate sale shopping, in shops and on line. A few weeks before sales time start I adding (quite indiscriminately) to my basket all items that I've been wanting that season, I get them ready in my chosen colour and size so the day that the sale hits I am (potentially) one click away from securing it at a better price.
I keep them in there waiting till the price goes down to what I'm mentally prepared to pay for them and if they go.. oh well, it wasn't meant to be! In the past I managed to get some great bargains with this technique, my Chinti and Parker L jumper was a sale buy last season.
It's a bit of a risque business as you never know what will sell out, but if you are ready to take a gamble it's worth trying it. Here are some of the things I've been wanting forever: Valentino shoes, an Eres one piece shoes and a Jil Sander crop top to wear with all my fabulous skirts. Other are things I love and already have, and I think perhaps you could bag at sale price. Happy (organised) sale shopping!