I used to frequent the Salvation Army on Strawberry. Lots of good t-shirt finds but it burned down last year. Alamo is excellent for dirt cheap literature.
i definitely concur on the non-iron shirts from brooks brothers. their stuff is pretty pricey, but i love it! i have a peacoat, several dress slacks (comes in petite which is good for me) and the non-iron shirts. they are unbelievable!! good find!