diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..c0df2ad
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,22 @@
+# TODO:
+* [ ] Prevent duplicates using Todoist ID
+    * e.g. `taskwarrior.filter_tasks({'todoistid.not': '...'})`
+* [ ] Support `start`, `until` and `for`
+    * Don't do within recur parsing, reparse whole string
+    * https://get.todoist.help/hc/en-us/articles/360000636289
+* [ ] Support repetition as regular period or offset from completion date (`every!`)
+    * e.g. `every! 30 days` would be due 30 days after completion date
+* [ ] Other 'every'
+    * every 3rd friday
+    * every 27th -- every 27th of the month (every 27 also works)
+    * every jan 27th
+    * every last day -- every last day of the month
+* [ ] Delete todoist cache or add warning so user does not forget that potentially sensitive data is lying around in file system
+* [ ] Handle inconsistencies (i.e. throw error or prompt for user input)
+    * Taskwarrior: 'monthly' just means 30d (see: [link](https://github.com/GothenburgBitFactory/taskwarrior/issues/1647))
+    * Taskwarrior: 'every monday,tuesday' is not possible
+
+Testing:
+* [ ] 'ev' as shortform for every
+* [ ] For inconsistencies in meaning or support, an exception should be thrown
+
diff --git a/tests/test_recur.py b/tests/test_recur.py
index 0b49bcf..b7f6111 100644
--- a/tests/test_recur.py
+++ b/tests/test_recur.py
@@ -4,7 +4,6 @@ Tests parsing `recur` strings from Todoist `date_string`s
 """
 from todoist_taskwarrior import utils
 
-# TODO: try with every and ev
 
 def test_hourly():
     assert utils.parse_recur('every hour') == 'hourly'
@@ -60,7 +59,6 @@ def test_day_of_week():
     """ The actual day should be indicated in the `due` property, so here
     we just need to ensure that the recurrence is correct.
     """
-    # TODO: test every day of the week (incl short forms)
     assert utils.parse_recur('every mon') == 'weekly'
     assert utils.parse_recur('every monday') == 'weekly'
     assert utils.parse_recur('every tuesday') == 'weekly'
@@ -81,9 +79,6 @@ def test_day_of_month():
     assert utils.parse_recur('every 22nd') == 'monthly'
     assert utils.parse_recur('every 23rd') == 'monthly'
     assert utils.parse_recur('every 24th') == 'monthly'
-
-    # TODO: taskwarrior doesn't support this *exactly* -- monthly just means 30d
-    # https://github.com/GothenburgBitFactory/taskwarrior/issues/1647
     assert utils.parse_recur('every last day') == 'monthly'
 
 
@@ -94,8 +89,5 @@ def test_annually():
 
 
 def test_unsupported():
-    # TODO: expect exception
-    # taskwarrior doesn't support reccurances of form
-    # - every monday,tuesday,...
     pass