My .ghci

:set prompt "λ> "
:set prompt2 "λ| "

:set editor vim

:def hlint const . return $ ":! hlint \"src\""
:def hoogle \s -> return $ ":! hoogle --count=15 \"" ++ s ++ "\""
:def pl \s -> return $ ":! pointfree \"" ++ s ++ "\""

:set +t
:set -Wall
:set -fno-warn-missing-signatures
:set -fno-warn-type-defaults
:set -fno-warn-name-shadowing
:set -fno-warn-unused-do-bind
:set -XOverloadedStrings
:set -XNoMonomorphismRestriction
:set -XRankNTypes
:set -XScopedTypeVariables


import Control.Arrow
import Control.Applicative
import Control.Monad
import Control.Concurrent
import Data.String
import Data.Char
import Data.List
import Data.Maybe
import Data.Monoid
import Text.Printf