[Chris]

The only thing I put in my calendar are events that have a specific time and duration (possibly estimated). That's because I use my calendar to manage time conflicts. Anything that needs to be done on a specific date but doesn't need to be done at a certain time goes into OmniFocus, with both the beginning and due dates being the same. If I try to put these latter events in my calendar, it makes it difficult for me to use the calendar to identify true time conflicts.

So for today, for example, my calendar has two meetings plus an hour blocked off for my weekly review, while OF has one event due today (which is actually to prepare for one of the meetings).