I take the view that if it is decent and modest then it is probably appropriate to wear to worship. So it probably is not appropriate that I wear my U2 T shirt or Scotland rugby shirt!
I used to do the whole Sunday best thing. Then I started being more casual for evening worship. Now, I tend to "business casual."
I have been in worship services where everyone is dressed like they are at a funeral. What kind of image does that project to the surrounding community or the visitor who drops by the worship service?

__________________
Donnie MacLeod
Crossroads Presbyterian Fellowship (PCA), Maplewood, MO
MDiv Student Covenant Theological Seminary

You filled my heart with greater joy
than others may have found
As they rejoiced at harvest time,
when grain and wine abound.Ps 4:7, Sing Psalms 2003