This is a non-post, for Rachel, who asked that I pick out clothing for her and post it on my blog. I decided to stick to Urban Outfitters-type places, because I know Rachel likes them.
First, you asked for “work shoes” and I am not sure what you mean since you work at a natural foods grocery stores and I would imagine that the dress code is pretty casual there. Here are some ideas:

Mariachi flats at Steve Madden. You could wear the mustard or tan ones over dark tights, and then wear them with no tights in summer! I think these would look really cute with jeans.
These are more expensive but they are very sharp:

F-Troup cutwork ballet shoe. I think I might get some myself! They would look nice with tights.
Now, moving on to clothing:
Dress from Urban Outfitters. This is so cute! I could see you flopping a little cardigan over this and driving around town!
I will update this later.