I learned an important lesson today. Whether you're mailing bills, your tax payment or a letter to a loved one be sure to avoid a major mistake that I made and almost ruined my package.

Oops. I'll never do that again. I made a huge mistake while using a public mail box for the first time. I recently sold a comic book on eBay and had to get the package in the mail quickly.

After meticulously wrapping and securing the vintage book I went down to my local public drop box which I had never used before. After inserting about a 1/4 the thin envelope I unfortunately hit the back of the box. Since I cannot bend the book I wasn't able to put the package in the slot.

I then made the terrible mistake of pulling it out. I had no idea the slot had teeth in it that only let envelopes in the box. The teeth act as a shredder if you try to removes something from the box.

Luckily, it only tore apart the bottom of my package but I certainly won't make that mistake again.