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.
If this is your first word action picture based article, you might try choosing your topic first and then choose an active verb or action word to build your article title and content. Now write an introduction emphasizing the risks and encourage your reader to keep reading for the solutions. End the introduction with a short list of benefits to the reader when they take your advice.