Combining the let and map form in a macro. Declare as many bindings as you want, and it will map across them using the symbols. Came to me when I needed something like a "foreach" for templating in Hiccup, but usable in a general context as well. Obviously the macro doesn't generate too much different, but I think its easier on the eyes.

let-map.clj

;=> (let-map [i (range 5)] (inc i))
;(1 2 3 4 5)
;=> (def books '({:name "The Great Gatsby" :href "urlA"}
;                {:name "The Unbearable Lightness of Being" :href "urlB"}))
;=> (let-map [b books] [:li [:a {:href (:href b)} (:name b)]])
;([:li [:a {:href "urlA"} "The Great Gatsby"]] [:li [:a {:href "urlB"} "The Unbearable Lightness of Being"]])

(defmacro let-map
  [decl form]
  "Usage: (let-map [i (range 5)] (inc i))" 
  (let [bindings (take-nth 2 decl)
        colls    (take-nth 2 (rest decl))]
    `(map (fn [~@bindings] ~form) ~@colls)))