middle-click

If I have open my personal Gmail and work Gmail in two tabs and middle-click the personal's 'Calendar', it's child tab should stay with that account.

IE8 Logs You Into Multiple Webmail Accounts | Lifehacker Australia 2009

However you can assign middle-click function to the scroll up key for example by this little registry hack:

From The Tips Box: DIY Skills, Touchpad Middle Click, Laundry Drying | Lifehacker Australia 2010

I asked about middle-click to close for Win7 a couple months ago.

Taskbar Overlord Tweaks The Windows 7 Taskbar | Lifehacker Australia 2009

For more, read about Windows 7′s best underhyped features like using middle-click to close applications.

Winfox Adds Jump Lists To Firefox On Windows 7 | Lifehacker Australia 2009

Normally when you middle-click on a taskbar icon, Windows 7 opens up a new instance of that application — but that action is also accessible with a Shift+Click as well, so Jay wrote an AutoHotkey script to use the middle-click to close open applications — just like closing a Firefox tab.

Taskbar Overlord Tweaks The Windows 7 Taskbar | Lifehacker Australia 2009

I had gotten Taskbar Shuffle so deeply ingrained in my day-to-day use, I didn't notice/remember that it was the reason I could middle-click to kill a window/process.

Middle-Click To Close Applications From Windows 7′s Taskbar | Lifehacker Australia 2009

Say, middle-click that button to maximize vertically and right-click it to maximize horizontally.

Maximise Windows Vertically With A Double-Click In Windows 7 | Lifehacker Australia 2009

You can configure a corner of the touchpad to act as a middle-click button.

Middle-Click To Close Applications From Windows 7′s Taskbar | Lifehacker Australia 2009

For more, check out how Windows 7 creates new folders with a hotkey, maximises windows vertically with a double-click, and closes applications with a middle-click.

Activate Windows 7 Jumplists With The Left Mouse Button | Lifehacker Australia 2009

For more, check out how Taskbar Overlord tweaks the Windows 7 taskbar, middle-click closes applications, or a quick navigation tip shows you the day for any given date.

CSMenu Brings The Classic Start Menu Back To Windows 7 | Lifehacker Australia 2009