diff --git a/paper_ideas.md b/paper_ideas.md
index c785a50..cb1717c 100644
--- a/paper_ideas.md
+++ b/paper_ideas.md
@@ -4,4 +4,8 @@
     - or: How I spent a night sorting the cupboard in my student dorm
 - A Category-Theorists view on interpersonal relationships
     - or: Fuck I should study something useful
-    - https://www.reddit.com/r/mathmemes/comments/16qttbe/inspired_by_people_calling_it_a_love_triangle_and/
\ No newline at end of file
+    - https://www.reddit.com/r/mathmemes/comments/16qttbe/inspired_by_people_calling_it_a_love_triangle_and/
+
+## Ads
+
+- lab grade crack pipes for the IRS method
\ No newline at end of file