diff --git a/Makefile b/Makefile
index 3a73229..79bdc84 100644
--- a/Makefile
+++ b/Makefile
@@ -11,3 +11,6 @@ test:
 
 doc:
 	bin/doc.sh
+
+packages:
+	bin/packages.sh
diff --git a/bin/env.sh b/bin/env.sh
index 3d9c92f..9a38f4c 100755
--- a/bin/env.sh
+++ b/bin/env.sh
@@ -17,8 +17,4 @@ if [ ! -f "$BASEDIR/env/updated" -o $BASEDIR/setup.py -nt $BASEDIR/env/updated ]
     echo "Requirements installed."
 fi
 
-pip install tox
-echo "Tox installed."
-
-pip install Sphinx
-echo "Sphinx installed."
+pip install -r $BASEDIR/requirements.txt
diff --git a/bin/packages.sh b/bin/packages.sh
new file mode 100755
index 0000000..4cf5cb5
--- /dev/null
+++ b/bin/packages.sh
@@ -0,0 +1,8 @@
+#!/bin/bash -e
+
+echo "Building wheel..."
+python setup.py bdist_wheel
+
+echo "Building egg..."
+python setup.py sdist
+
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..fd81402
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+sphinx
+tox
+wheel