Steam Summer Sale is announced to start on 11JUN15 at 1PM EST. It is said to end about two weeks afterwards. Just remember that this should be a fairly stress-free sale as there are refunds available. Also, take into consideration of this [www.gosugamers.net] lovely flowchart. Be ready for lighter wallets!

Update: A count-down clock for the summer sale[lab.xpaw.me]