I often open 5-8 tabs in a window while I'm researching, and sometimes have 4-5 windows going if it's a complex problem. However, once I've answered my own question, I close the tabs and windows, until I don't have anything open in the browser.
What is the point of keeping more than about 10 tabs open? Wishful thinking that you'll get around to reading an article that's 40 tabs deep? I honestly don't get it—can anyone explain the use case that would lead to close tab 127 and spend time in tab 128?