I love, love, love Katie Holmes' outfit in this shot --

It provides picture-perfect proof that mixing in a few trendy pieces (dark wash flares and an orange bag) with things you already own (a denim shirt, low-heeled neutral shoes and cute scarf) can make you look like the A-lister mom that you are deep inside.

This is a perfect Mom Uniform, particularly for those of you who aren't a fan of dresses and want to spotlight your legs and hide your mummy tummy.

Need some ideas on where to find the pieces of this outfit that you don't already have in your closet?

Read on for some affordable options!

To get Katie's look, start with a crisp chambray shirt. I like this Ralph Lauren version (Lord & Taylor, $59.50).

Add a pair of well-fitting flares, like these Black Orchid Trouser Jeans (Piperlime, $136).

Or you could opt for these more budget-friendly 1969 Long & Lean Jeans (Gap, $69.50).

Tie a pretty scarf around your neck- I like this ikat print silk scarf (Boden, $58), but you can find a long, printed scarf more cheaply just about anywhere.

Carry a bright orange bag- This Miquelrius bag (eBags, $24) is a great deal!

I also love this Poppie Jones Essex Shoulder Bag (DSW, $39.95).

Top off the look with a pair of luxe-looking oversized sunglasses (TopShop, $32), and BAM! You're a dead ringer for Mrs. Tom Cruise!

What do you think of Katie's look?

Images (top to bottom): Splash News, Lord & Taylor, Piperlime, Gap, Boden, eBags, DSW, TopShop