Mappery: Spy Gear, for the Ladies

Gents can appreciate a lot of this stuff too.

Store your secret stash:

Platform shoes with a hidden compartment pictured below
A water bottle safe that actually has water in it

Scale walls:

Ninja grappling hook or foot and hand claws

Multi-tool:

Girly Miss Army Knife Kit
Or the more useful Victorinox SwissChamp

Surveillance and data capture / storage gadgets:

World's Smallest Global Positioning (16 Satellite Real-Time) Tracking System
"Ripple" Bluetooth Headset Earrings
A reverse peep hole viewer
Stainless steel / crystal Heartwear necklace that's actually a really fancy USB drive
An over-the-top patriotic Lighter Spy Cam that records sound and video
Camcorders hidden in packs of gum and pens
Pens that are really scanners
A watch that's really a Digital Recorder/MP3Player

Sneaky weapons:

Kubatons keychain
A cell phone stun gun
Folding knuckle knife
Lipstick that is really a knife or pepper spray
A pepper spray ring
An easily concealable tiny Swiss Mini Gun
2.5" long Ruger LCP-380 Pocket Pistol
A cell phone gun

If you want to MacGyver your own weapons, you could (but probably shouldn't) make one of these 5 Deadly Sci-Fi Gadgets You Can Build At Home.

Bind / detain someone without lugging around hand-cuffs via these thumb cuffs that could probably easily be stashed down a bra.

For counter surveillance, this Auto Detective pen detects wireless and RF signals within a certain range and alerts you via a light that starts blinking - the faster the blinking the closer you are to the device you're detecting. It also supposedly has some sort of feature that helps detect counterfeit bills.

Finally, if captured by the enemy, be sure you know how to: