While the National Electric Code (NEC) has not specified a minimum, ideal and maximum height for electrical meter boxes, the utility company does. While utility companies may differ, most agree that the centre of the meter box should be between four feet and six feet above the ground.
The current price of a first class stamp is 49 cents. A domestic first class letter (1 oz.) is 49 cents. The price of each additional ounce is 21 cents. It will cost you 34 cents to send a domestic postcard.
Re: Using stamps - getting the amount correct with new stamps? The Forever stamp is always going to be worth whatever the current postage rate for 1 ounce is. So even you bought it for 46 cents it is now worth 49 cents of postage. I always have a small supply of add on stamps that I can attach for oversize, overweight, second ounce, etc. letters.