Quote Originally Posted by mak2011 View Post
GTD does not recommend that you attach a due date to anything outside of your calender. so even if evernote had a built in reminder function GTD advises against using it
I think you can attach due dates to Projects and Next Actions.

If these actions are not elements of your hard-landscape (calendar), the "due date" information is just an awarness-enhancing piece of data - not an action trigger.