The purpose for window envelopes is simple. In order for business to save time, as well as ink and toner, the letters and correspondence written are labelled with the address, and folded in such a way that it doesn't have to be reprinted on the envelope itself, but will show through the window.
Based on my searches, you can find to buy window envelopes online from windowenvelopes.com. Here you can find many types of window envelope that you need.
Envelopes come in various types, including standard envelopes (like #10 for business use), padded envelopes for shipping fragile items, and window envelopes that display the recipient's address through a cut-out. Specialty envelopes include invitation envelopes, clasp envelopes for secure sealing, and resealable options for convenience. Additionally, there are decorative envelopes for personal correspondence and mailing, as well as eco-friendly options made from sustainable materials. Each type serves a specific purpose based on the sender's needs.
Window envelopes are so widely used by small business because it helps cut costs and is more efficient than traditional envelopes. They come in many different sizes for all size business needs.
It would be cheaper to buy single window envelopes and have your address printed on it than it would be to order double windowed envelopes. Double window envelopes (depending on how many you buy) runs from 38.99 to 72.49 a box. With one window and printed addresses it runs from 22.99 to 61.99 with an additional that you will have to speak with a rep about.
The purpose of coin envelopes are for containing currency like coins when being mailed or exchanged. Because these envelopes are multipurpose, other small items can also be inserted in them.
A great site for double window envelopes is: www.envelopes.com. Not only can you find double window envelopes but they offer variety to fit your needs. If you have a certain color or size you would prefer this is the site for you.
Staples carries a few different brands who produce business sized double window envelopes. The approximate cost, depending on the brand, ranges from $35-$65.
I myself burn alot of CDs and am in need of those frequently. I typically shop at WalMart or Radioshack. Check out those websites or memorex.com or any of the above mentioned.
The purpose of mini envelopes are to enable the user to send or store items that are small in nature. The mini size typically is less than a Letter or A4 sized piece of paper folded in three.
The purpose of the window crank handle in a car is to manually roll up or down the window.
Prices for windowed envelopes will vary depending on the size and amount of envelopes you are looking for. A good start would be large office supply companies like office Max or staples. These stores generally provide a discount to business owners who buy in bulk.
1+1 = WINDOW