Originally Posted by surfperch

I do the same. I can get nice quality wool dress/suit pants for next to nothing sew on a button and a lashing strap (so they stay rolled up when I'm riding).

Might be kind of steampunk-ish looking on the bike, but I can unroll them when I get where I am going and throw on a dress shirt and a tie and not look like I've been through pedaling my butt off.