Linen suits are very comfortable on hot days.

People who say suits are uncomfortable have usually only worn cheap suits.

I learned the hard way that linen trousers, if they're satin lined, are definitely not comfortable on hot days. Doh.

One thing there's still a dearth of in the marketplace is men's trousers with stretch. I had a pair of gray stretch cotton/spandex (~5%) slacks from Banana Republic 8-10yrs ago that were absolutely perfect for anything, but haven't found much else similar since.

Imho, a simple wardrobe is great but being able to execute on the plan depends wholly on one's lifestyle.

He lives in Austin as far as I know. So, yeah...not sure how he does it in August, or May for that matter (though this May was nice).

I love my city but two things I can never defend: the heat and the traffic. Aside from that it is heaven on earth.

Joe Celko is bald. Do not underestimate how much cooling this buys you. :-)

It's not too bad, as long as you own appropriate suits. If you wear a heavy wool suit in August in NYC, you'll be a sweaty mes. If you wear an appropriate summer weight suit, you'll be ok.

I wear tanks and light leggings on really hot days (or in really hot countries). It's cool you don't have a problem deciding what to wear, though. I found myself bogged down with what was the appropriate thing for the right occasion/did stuff match well/did I look really cute or not.