Going back to read your question again, Echo, I'm wondering if you have had your foot measured. I assume they do that at Nordstrom's but if not, it would be a really good idea to do it. There are different kinds of wide feet. And different reasons for ill fit.
Some feet are just plain wide/ high volume all over.
Some are regular but with bunions.
Some are flat and wide.
Some have a high arch/ high instep that makes getting into shoes difficult even if the width, per se, is actually okay.
Some are wide in front and narrow in back.
It may be that you need to narrow down the style of shoe that is most likely to fit/ give comfort -- and that it's not purely a matter of width.
For instance, I can't keep flats on my feet unless there is a strap or a high vamp and even with a high vamp loafers and most slip on sneakers don't stay on. So my feet cramp if I try to wear them.
Others would find sandals with straps across very hard to wear or booties hard to get into, because of a high instep and high volume arch.
You get the idea I am sure.