Hah, so it appears I'm not the only one conflicted about this - looks like the forum is totally across the board on this as well.
I'm leaning towards what one of the posters above mentioned...just switch it up based on conditions. I'd been riding in work clothes the past week and a half since I started, and it was...fine. In cool, dry weather it really is not bad at all. I used to wear suits, or at least shirt/tie, but now work is much more casual. I really had no clothes in between suits/ties, and stained jeans and t-shirts of varying stages of decay lol. So I bought a couple pair of khakis and a few shirts...and who knew? They're putting spandex in khakis now..go figure. This makes the normal clothes option a bit more attractive.
That said...I really don't want to do it in uber hot, or damp weather. I'm not up for slogging 7-8 miles with heavy, wet, clingy cotton on my legs. So I think I'll switch it up based on conditions for now, and whether I've got time to extend my ride after work.
Thanks, I just wanted to make sure I wasn't crazy in assuming this is a sort of anything makes sense kind of distance.