In Windows 7: Just showing the basics of the Snipping Tool.
In the Start Search box, type snip, at the top left in Blue is Snipping Tool RIGHT click on it and select Pin to Taskbar or Pin to Start Menu. If you just want to use it a few time then left click on it to open it.
On this screen, you can click on the Icons at the top but it is easier to Right click inside this small screen and put your cursor over Send to and left click on E-mail Recipient. This will bring up the email with the capture in it. Type in the Recipient's name and click on Send. Or click on Save As and save it to your computer.
The capture is also on your clipboard, so you can open a document and do Control V and paste it in. Open another email, do Control V and paste it in.
Type in Recipient's name and click on Send.
In Windows 8: