diff --git a/labs/scripts/shutdown.sh b/labs/scripts/shutdown.sh
new file mode 100644
index 00000000..fd51ab82
--- /dev/null
+++ b/labs/scripts/shutdown.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+TOP_DIR=$(cd $(dirname "$0")/.. && pwd)
+source "$TOP_DIR/config/paths"
+source "$LIB_DIR/functions.guest"
+
+indicate_current_auto
+
+exec_logfile
+
+echo "Shutting down"
+
+# Shutdown some time after returning so our caller has time to finish
+sudo -b sh -c 'sleep 2; /sbin/shutdown -P now'
diff --git a/labs/scripts/zero_empty.sh b/labs/scripts/zero_empty.sh
new file mode 100644
index 00000000..bfff5fd5
--- /dev/null
+++ b/labs/scripts/zero_empty.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+TOP_DIR=$(cd $(dirname "$0")/.. && pwd)
+source "$TOP_DIR/config/paths"
+source "$LIB_DIR/functions.guest"
+
+indicate_current_auto
+
+exec_logfile
+
+# Fill unused disk space with zeroes (the disk image is easier to compress when
+# it doesn't contain leftovers from deleted files)
+zero_empty_space