The Royal Mail

"Excuse me?" I said to the postman.
"What, mate?"
"This letter?"
"What about it?"
"It's addressed to 88 Ash Road."
"And?"
"This is number 23."
"What's your problem?"
"You've posted it to the wrong house."
"As long as it's the correct road we ignore the numbers and bung 'em through any letterbox."
"You're kidding me, right?"
"Nope, new rules, it saves time."
"Saves time!"
"Yep, the householders can sort out what belongs where."
"But I'm expecting my monthly copy of Tit and Bum Magazine."
"Judging by the smile on the guy's face at number 37 I'd say he's got it."