Sending a letter by first-class post on a Saturday is a waste of money because a second-class letter gets there just as quickly, it was revealed yesterday. A little-known change to the postal system means the Royal Mail is overcharging customers by millions of pounds a year. First-class mail posted on Saturday used to be delivered on Monday, while second-class mail took a day longer. This is because the less-urgent second-class post was processed on Monday....Read more HERE

"This also includes Signed for Delivery - 2nd class gets the next day, just like 1st class"