diff --git a/Makefile b/Makefile
index f380c83..aa8acbd 100644
--- a/Makefile
+++ b/Makefile
@@ -11,13 +11,22 @@ CHALLS=$(foreach CAT,\
 		     )\
 		)
 
+.PHONY: printVerifiedFlags
 printVerifiedFlags: $(CHALLS)
 	find . -name 'Questions.yml' \
 		| xargs -n1 yq -c '.Questions.[].Question | select((.VerifiedBy != null) and (.Submitted == false)) | (.Text, .Flag)' 
 
+.PHONY: lock
+lock: $(CHALLS)
+	find . -maxdepth 3 -type d -name files -exec chmod -R a-w {} \;
 
 $(CHALLS): 
 	mkdir -p $(foreach PERSON,$(patsubst "%",%,$(PEOPLE)),$(@)/$(PERSON))
 	mkdir -p $(@)/files
 	find $(@) -type d -mindepth 1 -exec touch {}/.gitkeep \;
 	cp ./.Questions.yml $(@)/Questions.yml
+
+.PHONY: clean
+clean: 
+	chmod -R a+w .
+	rm -rf $(CATEGORIES)