The next time you get a piece of mail in an envelope. Put it up to some light, and look at the ends. One end is lighter than the other. It is empty.
There is nothing in it. The other end is full. Make sure you grab the empty end of the envelope.
Now tear the envelope open across the short and empty end you found. This is going to be a shallow rip across the end. You will likely only need to rip about 1/4 to 1/2 of an inch off the envelope. And definitely I suggest ripping less than an inch.
Congratulations. You have now opened your mail more quickly, more succinctly, and more cleanly than any other method I have found. This is my preferred method of opening mail in envelopes. You did not need another tool to do so. And you don’t have a bunch of little rips and tears in the envelope.
I discovered this about five or six years ago and I have been opening my mail this way ever since. At times I might tap my mail on the table to make sure I get everything into the full end and give myself more space in the empty end. I tap them on the table much like you might do with a messy stack of papers to get them all in alignment.
Only once or twice have I ever ripped or torn the contents of an envelope and it was always in a non consequential way.
What other mundane tasks have you been doing for as long as you can remember? When was the last time you looked up another way to perform the mundane tasks in your life? Is there a better way to open a trash bag? When was the last time you discovered a new way to perform a mundane task? When was the last time you shared a novel way you perform mundane tasks?