I typically wear one pair of jeans with no rotation until another denim and/or cut comes along that I want to try. If I am forced to wear something other than those, I'll reluctantly pull on a pair of chinos, or if it is a wedding or a funeral, a dark blue linen suit. In the summer I will wear shorts a lot and if I am wearing waders, I'll wear sweat pants under them.
And to me, a pair of jeans is a pair of jeans, I don't understand the concept of smart versus non-smart. They all start smart but end up being non-smart.
Sorry....