Copying and pasting is an essential part of every developers life. It is so essential that you can even buy a book with instructions:

Ok, jokes aside, Visual Studio offers a great feature called the Cycle Clipboard ring:

The clipboard ring remembers every piece of text that you cut or copy from the text editor. When you want to paste some text, use the command or the CTRL-SHIFT-V shortcut to select the word that you would like to paste: