I guess I'm going to be the odd-Mom-out, but Stride Rites are NOT the best shoe available. Despite the fact that Stride Rite has XX-wide widths, they are not a good shoe for children with very padded/thick feet from sole to top of foot (I know this isn't your daughter's issue, but I've never had a child with a xx-small foot!) More importantly, Stride Rites are not as flexible as they should be for a healthy toddler foot.
I shop for my childrens' shoes at Von Maur. They have sales staff in their Shoe Dept that have been there for years. I buy Geox and Ecco and Keen. These shoes can be slightly more expensive than Stride Rite, but the quality and fit difference are superior. My kids have one "primary" pair like this, and then I buy a back-up pair (for playing in the rain, etc.) from Target. I recommend you have your daughter's foot measured at Stride Rite and then go have her measured at Von Maur and see what they have to recommend. I think you'll be surprised. This may not help you money-wise, but it will get your daughter into shoes that actually fit.