diff --git a/lib/Genealogy/ObituaryDailyTimes.pm b/lib/Genealogy/ObituaryDailyTimes.pm
index 2a85f24..12dbd62 100644
--- a/lib/Genealogy/ObituaryDailyTimes.pm
+++ b/lib/Genealogy/ObituaryDailyTimes.pm
@@ -1,5 +1,8 @@
 package Genealogy::ObituaryDailyTimes;
 
+# TODO: add a key with first, last and age:
+# cache get for namespace='Default', key='SELECT * FROM obituaries WHERE age = ? AND first = ? AND last = ? 46, Thomas, Knowler', cache='File', time='0ms': MISS (not in cache)
+
 use warnings;
 use strict;
 use Carp;