Nothing clears a room of baby-adoring adults faster than a dirty nappy. “Not it!”

If only they knew how easy Lala’s Pequeños knottie sleeper makes things.

The extra-long unisex nightgown has two strips that tie into a knot to keep baby’s toes from catching a chill. When it’s time for a clean diaper, just untie, do your work, and retie.

Made from bamboo and hemp, with easy-on/easy-off necklines, the all-natural sleepers are perfect for newborns whose primary responsibilities include snoozing, eating, and pooping. Parents who find themselves on diaper duty around the clock won’t turn their noses up at them either.

Change is good.

Available online at lalaspequenos.bigcartel.com, $44.

PAMPER
Natural Baby, Green Mom
What: Get a few tips on everything from baby skin care to tackling pregnancy-related breakouts at Violet Skin Boutique’s free seminar.
Why: Can’t make it? Score 20 percent off products (reg. $14-$29) from the recently debuted baby and maternity skin care line all weekend.
When: Fri., 6:30 p.m.
Where: 1362 Beacon St., Brookline. Seminar registration (required) to 617-264-7546 or violetnaturalproducts@yahoo.com. Pre- and postnatal facials and massages, $95-$115; book this weekend and get $10 off.

SAIL
Meet Your Princess Lunch Cruise
What: Dress in a flouncy frock for dancing, stories, and a bit of the royal treatment.
Why: She hates to leave her tiara at home.
When: Sat. Board, 11:30 a.m.; cruise, noon. (Also Aug. 13.)
Where: Spirit of Boston, Seaport World Trade Center Marine Terminal, Seaport District. Tickets at 866-310-2469 or online at spiritofboston.com. Adults and teens, $36; children, $16; under 3, free.

INTERACT
Play Date
What: Sketch, create sculptures, and watch performances by David Parker & the Bang Group and Summer Stages Dance.
Why: Velcro + bubble wrap = choreography like he’s never seen.
When: Sat., 10 a.m.-4 p.m.; performances, noon & 1 p.m.
Where: The Institute of Contemporary Art, 100 Northern Ave., Waterfront District (617-478-3100). Families (up to two adults with children 12 and under), free.

Photo: Courtesy of Lala’s Pequeños