Tipping prompts have crept into nearly every corner of daily life, and nowhere is the backlash louder than at self-checkout kiosks. Dave Portnoy has turned that frustration into a running critique, ...

Randi Mahomes went viral after questioning a tipping prompt at a fast-food self-service kiosk while dining with her daughter.

Touchscreen tipping prompts are everywhere. Here's when and how much to tip in various situations. Touchscreen tipping prompts are everywhere. Here's when and how much to tip in various situations.