diff --git a/.gitignore b/.gitignore
index 26283617..13c99352 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,8 @@
 *.pyc
+*~
+.lock-w*
+.wafpickle-*
+demos/*/build*
+demos/out.txt
+playground/*/build*
 waf
diff --git a/demos/intltool/.gitignore b/demos/intltool/.gitignore
new file mode 100644
index 00000000..2b42c587
--- /dev/null
+++ b/demos/intltool/.gitignore
@@ -0,0 +1 @@
+po/.intlcache
diff --git a/playground/codegen/.gitignore b/playground/codegen/.gitignore
new file mode 100644
index 00000000..dc9b2375
--- /dev/null
+++ b/playground/codegen/.gitignore
@@ -0,0 +1 @@
+generated
\ No newline at end of file
diff --git a/playground/top_eq_out/.gitignore b/playground/top_eq_out/.gitignore
index 60dcc425..47927058 100644
--- a/playground/top_eq_out/.gitignore
+++ b/playground/top_eq_out/.gitignore
@@ -1,3 +1,4 @@
+*.o
 .lock-w*
 .conf_check_*
 config.log