Windows clipboard has the main problem that you can only store one item at a time and when you copy another item, the previous one is lost. Pastey is a nice extension for Google Chrome which allows you to copy and paste multiple text into its interface and you can paste the items selectively using the interface. It is a simple copy & paste board allowing you to temporarily store multiple text-clips in chrome and copy them to your clipboard with a single click.
You can store multiple text items and when you want to paste any of the items, just click on the listed item and your text is automatically copied back. You can also selectively delete the stored text. In case you want to clear all the contents, click on the top button and the stored texts are cleared.
Pastey is one simple extension for Chrome, but pretty useful to manage your clipboard.