diff --git a/TODO b/TODO
index 95687372..e3c644d1 100644
--- a/TODO
+++ b/TODO
@@ -3,6 +3,13 @@ Working TODO list:
  - Add (list-set!) from r7rs
    will likely require tweaks to GC similar to (set-car! / set-cdr!)
 
+ - Error handling
+   need to perform much more error handling of input code. one of the biggest is to report if a function is passed the wrong number of arguments, as this will result in segfauls, bad transport errors, etc downstream if it is allowed.
+
+ - Reduction in size of generated code
+   is there anything we can do?
+   are closures being packed/unpacked unnecessarily?
+
  - Issues with detecting cycles:
    - (equal?) loops forever when comparing two different circular lists
    - printing *global-environment* in the repl still loops forever
@@ -37,9 +44,6 @@ Working TODO list:
   TODO: once this works but before moving all, consolidate all this in docs/strings.txt or such. would be useful to keep these notes
 
 
-- Error handling
-  need to perform much more error handling of input code. one of the biggest is to report if a function is passed the wrong number of arguments, as this will result in segfauls, bad transport errors, etc downstream if it is allowed.
-
 - Unit test improvements
   - concatenate all into one file when compiling / running
   - add assert functions, and actually test for equality