***Please introduce a "Snooze" email feature that will make an email appear back in your inbox at a later date. GMAIL has this and it is the single BEST feature ever. It allows your users to eliminate to-do items and have them pop back up in the inbox at a later date when they need to address!
Tom Houser commented
This is what I do.
I put things like this into the Yahoo calendar and tell it to remind me daily, weekly, twice a week, monthly, yearly, etc. You can set when the reminders start and how long the reminders last.