Key card envelopes are a popular envelope for storing any credit card sized item, from a hotel key entry card, to a gift card, or even an employee ID. These small envelopes are slightly larger than a credit card, and have what is called a double thumb_cut, or a slot at one end where you can pull the card out. While most of these envelopes are used for hotel keys (hence the name), there are many other applications for key card envelopes.
You can use templates to help you get healthier. There are a couple of designs for a diet and exercise diaries and grocery lists. You can even create a household budget or a household chore list. Figuring out how long it will take you to pay of your home loan can be done using a Microsoft Word template. Seems like there might be template for every aspect of life.