WALL STREET JOURNAL - June 27 - The popularity of the dating apps means singles are going on more first dates than ever. Many women say they have stopped doing the reach for their wallets because they are not only more likely to end up splitting the bill, but also more liable to cover all of it. The rules aren't complicated, according to etiquette experts. "If you invite, you pay," said Diane Gottsman, author of "Modern Etiquette for a Better Life." "But the reality is that the other person may not know the rules or realize it's a date."