Need to use http but don't necessarily have a problem that warrants downloading the entire Apache HTTP client? Enter [clj-http-lite](https://github.com/hiredman/clj-http-lite) which just uses the Java core libraries (but retains a sane interface).

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A tuple library for small collections [clj-tuple](https://github.com/ztellman/clj-tuple)

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Use *complement* to invert a predicate.

E.g. `(complement string?)`

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[Clabango](https://github.com/danlarkin/clabango) is a Django templating port, that also seems to support filters and inheritance. Looks a bit less active than Selmer but its hard to see any differences between them currently.

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Clojure templating frameworks: [Fleet](https://github.com/Flamefork/fleet), [Selmer](https://github.com/yogthos/Selmer) and [Stencil](https://github.com/davidsantiago/stencil).

Fleet uses a special kind of limited syntax to interpolate what seems to be Clojure code into a template.

Selmer is inspired by Django's templating and is used in the Caribou framework.

Stencil is a fairly straight-forward Mustache port