No it's too trivial, and its not illegal. That would mean that the newpaper boy would get in trouble for throwing a newspaper at someones front door.
trouble putting right front signal bulb in.
This depends on what is usual in your country. We I live we put the address where the letter is going on the front, left hand side and the return address on the back of the envelope.
The sender address goes either on the back at the top of the envelope or on the left hand corner in the front. The receiver's address goes in the front center of the envelope, and the stamp goes on the top right hand corner of the front.
In generally goes on the upper left corner of the front of the envelope.
The front of the envelope would have 1, while the back would have 2.
material yardage
When sending a wedding invitation the response card should go into the response envelope and you should address it back to you on the front of the response envelope with a stamp on the envelope.
The back of the envelope will be the triangular-shaped part that folds down in back; it usually has some kind of adhesive to seal the envelope (most often by moistening the strip).
tire rotation
A self-addressed envelope is an envelope with your address on the front of it in the MAIL TO area. If the ad/directions include SASE...this means self-addressed stamped envelope. In this case, you would include postage so the company/organization/person can mail your request to you.
Approximate middle of the front of the outside!
Use "an" before words that start with a vowel sound, such as "an apple." Use "a" before words that start with a consonant sound, like "a banana." The choice between "a" and "an" depends on the pronunciation of the word, not just its spelling.