One thing that has really struck me this year - especially now that I'm up over 10 colonies - is the need to know your regional 'dates'.
By that I mean:
When early pollen starts and what's blooming
When swarm season starts and what's blooming
When the main flow starts and what's blooming
If/when you're most likely to get a dearth in your area
When fall flow starts and what's blooming
When to complete assessments and begin feeding if necessary
When you should be finished with liquid feed
When to treat (if you do that)
When to have them ready for winter
Notice that a lot is tied to an awareness of blooms. Knowing what flowers are important in your area and becoming aware of them is huge.
For the last couple of seasons, I only ran a couple of hives in my yard. So it was easy to react moment-to-moment.
But this year, with 13 hives in three yards, I have found that I'm often playing catch up - a little behind on what I should be doing. This creates stress for me and the bees. From a lot of the questions I see on the forums, I can see that others are playing catch-up a lot too.
To any of you less-experienced beekeepers: Take my list and see if you can put a date next to each one, and a bloom next to each one that mentions bloom. If you can't then work to be able to.
It'll make next season way more enjoyable.