Get thrifty in Vegas, go green in New York, or be playful in Salem

A Las Vegas hotel room for $18? It's possible, says Hotels .com, if you book by March 16. The $18 room is downtown at the Plaza Hotel and Casino, and several other hotels have nightly rates of $20-$70. To get the lowest rates, there may be conditions such as minimum-stay requirements, and although the sale is for occupancy through March 31, the best prices appear to be until March 17.

Visit www.hotels.com and click on Las Vegas Sale or call 800-246-8357.

$109 ski suite

Shell Vacations Hospitality has fireplaced suites at Crotched Mountain Resort in Francestown, N.H., for $109, which is $50 off the regular rate. The price is available until March 31.

Visit www.shellhospitality.com or call 603-588-2000 or 866-729-7182.

Rock the boat

Harvey Robbins's 17th annual Doo-Wop and Rock 'n' Roll Boston-to-Bermuda cruise will be May 22-29, aboard the Norwegian Spirit. There will be three concerts during the week, and performers will include singers from the Jive Five, the Midnighters, the Tune Weavers, and the Interludes. Private parties and meet-and-greet sessions with the singers are included. Rates start at $836 per person.

For bookings that include the shows, call 978-256-6472 or 800-772-0847.

Lucky discounts

To celebrate St. Patrick's Day, two of New York's Kimpton Hotels are serving up deals. The Muse New York, steps from the St. Patty's Day parade route, is featuring a You're in Luck package throughout March, which includes the fourth night free with a booking of three nights, complimentary continental breakfast, Guinness beer upon check-in, and a map of the best local Irish pubs. Also, the 17th person to check in on March 17 gets that night free. Meanwhile, 70 park avenue hotel is offering 17 percent off the best available rate throughout March. On St. Patrick's Day, guests will hear a harpist at the complimentary wine hour, and Irish food will be served at the Silverleaf Tavern. For both packages, rates start at $279 per night.

Call 800-KIMPTON and use rate code PLUC. The website is www.kimptonhotels.com.

Artful lodgers

Mandarin Oriental, Boston has teamed with the Peabody Essex Museum in Salem for a package that highlights the new museum exhibition "Mahjong: Contemporary Chinese Art from the Sigg Collection." The package, available until May 15, includes a night's accommodations, breakfast at the hotel's Asana restaurant, two tickets to the exhibit, and limo service to and from the museum. Prices begin at $605.

Visit www.mandarinoriental .com/boston and click on Tempting Offers or call 617-535-8880 or 866-526-6567.

RICHARD P. CARPENTER

Most prices quoted are for double occupancy, minus taxes and fees. Offers are subject to availability. Richard P. Carpenter can be reached at carpenter@globe.com.