Making art involves creativity, of course. But for many artists, including St. Louis’ Tate Foley, exactitude is every bit as important. Printmaker Foley is meticulous about following the necessary steps, in strict order. One of his first steps sometimes involves ordering from eBay, since Foley’s work explores consumerism using things like gum wrappers and trading cards. But his next project — for the Great Rivers Biennial opening in May at the Contemporary Art Museum — involves something less