
Not having it all in one system, or integrated between the two is kind of a plus for me in some ways. I have a traditional to-do manager (Omnifocus) for more abstract project tracking, and a lighter weight app (Due) for reminders. Really lightweight reminder system with a great snooze feature at its core. That said, I'm actually getting a lot of mileage from a new one I'm trying "Due" (iOS/mac only. Too forceful, and I find myself hating the experience and it backfires. I find that a reminders-based app needs to have a fairly specific level of forcefulness, or basically the ability to "nag" you.

Hey, as a fellow ADHD sufferer, I totally agree that fine-grained reminders and the "remind me again in X minutes" functionality is huge in a productivity app.
