THCD or Nothing

[Karl R]

I guess my question is should I strive for "THCD or nothing"? If a button-down collared shirt is too formal, then opt for jeans instead of a kilt?

Have you looked at buying more casual button-down shirts?

For example, I've found that linen shirts (see example) or cotton/linen blends tend to look more casual, just due to the material. This also works with some 100% cotton shirts.