Today, for some totally random reason, it suddenly hit me that I haven't opened Stack Overflow in a very, very long time, at least half a year. And that gives me a strange sense of loss. I used to open it almost every single day. It was there through more than a decade of my career, and somehow I managed to forget about it this fast.

So guys, for how long have you not opened Stack Overflow? And has anything else quietly dropped out of your workflow the same way, without you even noticing?