Missouri Star Quilting in Hamilton consists of more than a dozen buildings, each carrying a unique selection of fabrics. Lots of bolts and precuts. In the St. Louis area my two favorites are Jackman's on Lindberg Blvd and the Quilted Fox on Clayton Road in Frontenac. The latter has international quilting fabrics.
(You might want to call Jackman's in Fairview Heights, IL before shopping for quilting cotton, as that store may be designated as the upholstery and curtain fabric location.) Congrats on the upcoming retirement and travel plans!!!