Tia Mowry is always on the go—and always prepared! The star of Nickelodeon's sitcom Instant Mom, Mowry, 36, is the real-life mom of son Cree, 3. What's inside the large black bucket tote bag gifted to her from her twin sister, Tamera Mowry? Tia, married to actor Cory Hardrict since 2008, spills out her on-the-go essentials just for Us Weekly.

Squeaky! Hand Sanitizer
Mommy keeps a bottle of this hand sanitizer that she developed with her twin at the ready. "I don't want my son getting sick, but I don't want to get sick, either," she tells Us of the all-natural product. "When a mom gets sick, it's over. You have to just shut it down."

Boys' Potty Time Book
"I felt that reading a book to him would make [potty training] a little more interesting," Mowry says. "I also heard that if you put Cheerios in the toilet, they can aim. That's fun, right?!"

DVD Player and Dora Saves the Day DVD
"When I'm traveling with my son—we travel a lot in the car—this is my lifesaver!" Mowry tells Us.

For more of Tia Mowry's baby bag must-haves, watch the video above now! To enter for a chance to win weekly prizes, including $500 and a designer purse by showing Us Weekly what's in your bag, Tweet or Instagram a pic of your carryall's contents to @UsWeekly #WhatsInMyBag, or click here.