To nudge guests to leave tips, Marriott has partnered with A Woman’s Nation, a nonprofit aimed at empowering women, to launch a new campaign this week called “The Envelope Please,” according to a press release from the hotel chain. Throughout the U.S. and Canada, Marriott will place envelopes in 160,000 rooms at 750 to 1,000 of its brand hotels, including Courtyard, Residence Inn, Ritz-Carlton and Renaissance.

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