Billionaire Warren Buffett hasn't had a haircut or worn a tie in 7 weeks, he revealed at Berkshire Hathaway's annual meeting

· *Warren Buffett has been sticking to sweatsuits during the coronavirus outbreak, he revealed during Berkshire Hathaway's virtual annual meeting on Saturday.*
· *"It's been seven weeks since I've had a haircut," the 89-year-old billionaire and Berkshire CEO said.*
· *"It's been more than seven weeks since I put on a tie or...