I've been using an off-brand of this bar for about 2 years in 10" size. It has really saved my butt more times than I can recall. Once, it even served as a back-up when I was approached by 2 young mean asking for change at the drive-thru ATM who wouldn't take no for an answer. My little bar seemed to diffuse the situation.

Back then, I purchased 2, keeping one for backup. At $10 each shipped, it was a steal. Just used it last week to uncrate a piece of restaurant equipment. Nothing else would've worked.
I'm still on the first one, but could really benefit from a slightly longer/larger model (borrowed a 14", and it made a hell of a difference for larger tasks). So, did some searching and found this,
http://www.walmart.com/ip/Stanley-Fatmax-Claw-Bar-14-55-123/26910087.
At $11+ is a bargain. I bought two and got free Value Shipping. The extra length is a big advantage for some prying task. I believe Amazon has it at this price, too (with Free Shipping for Prime Members).
The sleek design and lighter weight (compared to other small crow bars) makes it an excellent EDC for the vehicle. I leave mine with my quick-access tools where I can reach for it in a second or two. Mine has wrapped paracord for added grip.
There are shorter models, too, I'm sure some may prefer. But, right now, this 14" is on sale. I can't recommend this model/design enough.
Thanks.
multiprim