S.W.
I'm glad that pantyhose have gone out of favor, in general, but I'm with you that wearing closed dress shoes with no stockings give me blisters. Sorry, but my feet sweat and even well-fitting shoes get uncomfortable after awhile. I would try the "footie" socks that Fanged Bunny mentioned if I had to wear heels.
What I normally wear are pants/slacks with nice tops/sweaters and either dress sandals or ankle boots, depending on the season. Ankle boots and pants allow me to wear cotton socks (yay!).