I appreciate the thoughts on summer attire. Thanks, everyone.
I've seen shirts in catalogs that are listed as "
travel shirts," and they sound like what you're looking for, yesno.
I have also been confused by what left/right means in relation to belts. I consulted Amy Vanderbilt's book of etiquette this morning in the hope of some definitive ruling on the subject, but she does not mention it. She has lots to say about formal wear, though.