diff --git a/TODO b/TODO
index 07062f5..c66485d 100644
--- a/TODO
+++ b/TODO
@@ -3,6 +3,10 @@
 * TODO cache dir: split json data from other HTTP info
   for easier further processing of additional API data
 
+* TODO cache dir: split in subdirs
+  to avoid hitting too hard on the filesystem due to the large amount of files
+  (200k+)
+
 * TODO network-level traceback
   Traceback (most recent call last):
     File "/usr/lib/python3/dist-packages/urllib3/response.py", line 186, in read