In Eclipse, selecting a line and pressing Alt + ↑/↓ will move the line up and down, a quick way to avoid copy&paste. Is there an equivalent in Visual Studio?
In Visual Studio 2013 and later, this functionality is built in. ALT + UP/DOWN will move a line up or down.
If you need this functionality in VS2012 (works with VS2010 too), take a look at the MoveLine Visual Studio Extension or the Productivity Power Tools suite.