Just as you mastered the art of packing the perfect diaper bag, he’s potty trained and headed to preschool. Help him make sure he’s got this one in the bag.

Step One: Find the perfect carryall. It should be big enough to hold essentials (a snack, a sippy), but not so large that it weighs him down. Our pick: the handmade cotton and linen messenger bags from Mee a Bee ($25-$40), sized to sling across the chests of scholars ages 3 to 6.

Step Two: Leave a paper trail. Ecojot’s latest collection of spiral-bound sketch pads and journals ($4.50-$17) supports the Jane Goodall Institute with collage-inspired cover images of endangered species. But it’s the recycled, unlined paper and heavy-duty back cover that give kids what they need to write and draw.

Step Three: Color it in. P’kolino’s art set ($20) is a cornucopia of jumbo markers, triangle and wrapper-free crayons, and hexagonal colored pencils — all designed to fit little hands. So practicing good form is as easy as one, two, three.

Looking for the perfect lunch box?
Check out our photo gallery.

SHRED
Girls Rock Philly Showcase
What: Eighty budding divas take to the stage to show off skills learned at music camp.
Why: Catch a glimpse of their stellar rock star moves.
When: Sat., 1 p.m.
Where: The Trocadero Theatre, 1003 Arch St. (215-922-6888). Tickets online at ticketmaster.com. Adults and children, $10.

CRAWL
Bug Fest
What: Meet local beekeepers, sample honey, and participate in activities inspired by creepy critters.
Why: Cucarachas skedaddle at the roach race.
When: Sat. & Sun., 10 a.m.-5 p.m.
Where: The Academy of National Sciences, 1900 Benjamin Franklin Pkwy. (215-299-1000). Adults, $12; children 3-12, $10; under 3, free.

SHIVER
The Creature from the Black Lagoon
What: Get goosebumps from the campy black and white classic.
Why: Free mini Slinkies and popcorn.
When: Sat., 7:30 p.m.
Where: Independence Seaport Museum, Penn’s Landing, 211 S. Columbus Blvd., at Walnut St. (215-413-8655). Adults, $12; children, $7; under 2, free.

Photos: Courtesy of Jacqui Miyabayashi / Meeabee; Courtesy of Ecojot; Courtesy of P’kolino

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