diff --git a/TODO b/TODO
index 8ea1c92..d707d90 100644
--- a/TODO
+++ b/TODO
@@ -3,7 +3,11 @@
 	jwack jobserver
 		make compatibility
 		sockety interface
-	sqlite .redo database
+	sqlite .redo database?
 	rename --ifchange/--ifcreate to separate programs
 	rewrite ifchange/ifcreate in C
-	
\ No newline at end of file
+	always update database atomically?
+	find the right .repo dir automatically
+	cd into subdir automatically
+	'redo clean' should work
+	aggressively mark stuff as done in the .redo database
\ No newline at end of file
diff --git a/clean.do b/clean.do
index 97f6955..b1ae425 100644
--- a/clean.do
+++ b/clean.do
@@ -1 +1 @@
-rm -f t/hello t/*.o *~ .*~ t/*~ t/.*~ *.pyc t/CC t/LD
+rm -f t/hello t/[by]ellow t/*.o *~ .*~ t/*~ t/.*~ *.pyc t/CC t/LD
diff --git a/t/bellow.do b/t/bellow.do
new file mode 100644
index 0000000..9ab2cf2
--- /dev/null
+++ b/t/bellow.do
@@ -0,0 +1,2 @@
+redo --ifchange LD yellow.o
+./LD bellow yellow.o
diff --git a/t/it.do b/t/it.do
index 22e2266..9489b33 100644
--- a/t/it.do
+++ b/t/it.do
@@ -1 +1,2 @@
-redo --ifchange hello
+redo --ifchange hello yellow bellow
+
diff --git a/t/yellow.do b/t/yellow.do
new file mode 100644
index 0000000..7faac8f
--- /dev/null
+++ b/t/yellow.do
@@ -0,0 +1,2 @@
+redo --ifchange LD yellow.o
+./LD yellow yellow.o
diff --git a/t/yellow.o.do b/t/yellow.o.do
new file mode 100644
index 0000000..331c775
--- /dev/null
+++ b/t/yellow.o.do
@@ -0,0 +1,2 @@
+redo --ifchange CC hello.c
+gcc -o $3 -c hello.c