Shark Tank's Kevin O'Leary calls this financial perk 'worthless'
The 'Shark Tank' millionaire made the bold statement during an interview.

It seems like no matter where you shop or go out to eat these days, every business wants to give you a loyalty card and encourages you to start earning points by being a repeat customer.
Often these programs give you a treat for signing up, like a free coffee or something to eat. It's an easy way to coerce consumers, so it's no surprise it works. And if you have a favorite spot you really like to go to, you may as well earn points for your purchases and rack up some free stuff once in a while.