What to know about tipping at self-checkouts
Tipping Has Come for Self-Serve Checkout - WSJ
Self-checkout machines now ask customers to tip
Now Even Self-Checkouts Are Asking Us to Tip??? - WINDFM - 92.5 Gainesville 95.5 Ocala
Tipping Has Come for Self-Serve Checkout - WSJ
Should You Tip at Self-Checkout?
Why asking customers to tip at self-checkout may be going too far
Those iPad Screens Are Getting Us to Tip More—Way More - WSJ
Why Businesses Can't Stop Asking for Tips - WSJ
Self-Checkout Machines Ridiculed for Asking for Tips