diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 [![](https://builds.sr.ht/~lukec/shh/nix.yml.svg)](https://builds.sr.ht/~lukec/shh/nix.yml?)
 
 <details><summary>
-Shh is a library to enable convinient shell-like programming in Haskell.
+Shh is a library to enable convenient shell-like programming in Haskell.
 It works well in scripts, and from GHCi, allowing you to use GHCi as a shell.
 </summary>
 
@@ -52,7 +52,7 @@
    using template Haskell, as well as a runtime check to ensure they all
    exist on startup.
 
- * Redirction of stdout and stderr
+ * Redirection of stdout and stderr
        
    ```haskell
      -- Redirect stdout
@@ -77,7 +77,7 @@
      (echo 1 >> echo 2) |> cat
    ```
 
- * Use of Haskells concurrency primitives.
+ * Use of Haskell's concurrency primitives.
 
    ```haskell
      race (sleep 1 >> echo "Slept for 1") (sleep 2 >> echo "Slept for 2")
@@ -180,15 +180,20 @@
 
 ## Usage
 
-Enable Template Haskell and load the environment
+Enable Template Haskell and load the environment. It is also strongly
+recommended to use `ExtendedDefaultRules`.
 
     {-# LANGUAGE TemplateHaskell #-}
+    {-# LANGUAGE ExtendedDefaultRules #-}
     $(loadEnv SearchPath)
 
-You now have all your executables available as simple to read
-Haskell functions.
+You now have all your executables available as simple to read Haskell
+functions. This may render the namespace unwieldy. Executables may be loaded
+explicitly using instead `load ShellPath`, such as
 
-If you want to check that all the dependenies still exist, you can use
+    load SearchPath ["echo", "grep", "cat", "ls"]
+
+If you want to check that all the dependencies still exist, you can use
 `missingExecutables :: IO [String]`, which will tell you if anything is
 missing.
 
diff --git a/shh.cabal b/shh.cabal
--- a/shh.cabal
+++ b/shh.cabal
@@ -1,5 +1,5 @@
 name:                shh
-version:             0.7.0.6
+version:             0.7.0.7
 synopsis:            Simple shell scripting from Haskell
 description:         Provides a shell scripting environment for Haskell. It
                      helps you use external binaries, and allows you to
diff --git a/src/Shh/Internal.hs b/src/Shh/Internal.hs
--- a/src/Shh/Internal.hs
+++ b/src/Shh/Internal.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE BangPatterns #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RecordWildCards #-}
@@ -836,8 +837,7 @@
         dropLastNull :: [ByteString] -> [ByteString]
         dropLastNull []   = []
         dropLastNull [""] = []
-        dropLastNull [a]  = [a]
-        dropLastNull (a:as) = a : dropLastNull as
+        dropLastNull (a : as) = a : dropLastNull as
 
 -- | Load executables from the given directories
 loadFromDirs :: [FilePath] -> Q [Dec]
diff --git a/test/Readme.lhs b/test/Readme.lhs
--- a/test/Readme.lhs
+++ b/test/Readme.lhs
@@ -5,7 +5,7 @@
 [![](https://builds.sr.ht/~lukec/shh/nix.yml.svg)](https://builds.sr.ht/~lukec/shh/nix.yml?)
 
 <details><summary>
-Shh is a library to enable convinient shell-like programming in Haskell.
+Shh is a library to enable convenient shell-like programming in Haskell.
 It works well in scripts, and from GHCi, allowing you to use GHCi as a shell.
 </summary>
 
@@ -52,7 +52,7 @@
    using template Haskell, as well as a runtime check to ensure they all
    exist on startup.
 
- * Redirction of stdout and stderr
+ * Redirection of stdout and stderr
        
    ```haskell
      -- Redirect stdout
@@ -77,7 +77,7 @@
      (echo 1 >> echo 2) |> cat
    ```
 
- * Use of Haskells concurrency primitives.
+ * Use of Haskell's concurrency primitives.
 
    ```haskell
      race (sleep 1 >> echo "Slept for 1") (sleep 2 >> echo "Slept for 2")
@@ -180,15 +180,20 @@
 
 ## Usage
 
-Enable Template Haskell and load the environment
+Enable Template Haskell and load the environment. It is also strongly
+recommended to use `ExtendedDefaultRules`.
 
     {-# LANGUAGE TemplateHaskell #-}
+    {-# LANGUAGE ExtendedDefaultRules #-}
     $(loadEnv SearchPath)
 
-You now have all your executables available as simple to read
-Haskell functions.
+You now have all your executables available as simple to read Haskell
+functions. This may render the namespace unwieldy. Executables may be loaded
+explicitly using instead `load ShellPath`, such as
 
-If you want to check that all the dependenies still exist, you can use
+    load SearchPath ["echo", "grep", "cat", "ls"]
+
+If you want to check that all the dependencies still exist, you can use
 `missingExecutables :: IO [String]`, which will tell you if anything is
 missing.