Hush, little baby, don’t say a word. Mama’s going to burn a few lbs. while she rocks you to sleep. Alameda mom Darcy Novo Albrecht used her dance and cheerleading background to create Lullaby Exercises. The 35-minute, multipurpose DVD features exercises set to singer/songwriter Lisa Phenix’s upbeat bluesy rock soundtrack. Wear a sling to do the easy sets designed to chill fussy ones and work muscles. Warm up with a line dance then move on to squats (pipsqueaks love the up-and-down action). The groove set works the abs standing up. And, last but not least, the sleep set sends your infant to snoozeville. No mockingbirds or diamond rings required. Check out a live demo at the release party, Saturday, March 8, 11 a.m-4 p.m., at Crosstown Coffeehouse, 1303 High Street, at Encinal Avenue, Alameda (510-864-8600 or crosstowncoffee.org). Preorder online at chicks-n-chickens.com. DO Kids Play Night: Microscope Magic What: Drop the kids at Frog Hall to learn about magnifying lenses, make their own slides, and play with rescued reptiles. Why: Abracadabra. You’ve got the night off. When: Sat., 6-9:30 p.m. Where: Tree Frog Treks, 2114 Hayes St., at Cole St. Register online at treefrogtreks.com or call 415-876-3764. PLAN San Francisco Family Summer Resource Fair What: More than 200 camps, classes, and other neat stuff to keep kids busy during the schoolless months. Why: It’s a long, cool summer. When: Sat., 10 a.m.-3 p.m. Where: Concourse Exhibition Center, 635 8th St., at Brannan St. RALLY Moms in Career Transition What: Get back into the game with this four-week career exploration group. Why: Beat Britney to the comeback. When: Thru Mar. 26. Wed., 9:30-11:30 a.m. Where: Congregation Emanu-El, 2 Lake St., at Arguello Blvd. (415-751-2535). Register online at jvs.org.