If the answer is yes, probably you can skip this point.
But if you are not so sure or I you think that there are some blind spot in you strategy or if something is going wrong just now, please take a look to this model of planner.

Of course this is just an example and for sure you have to adjust to your business objective, but still a graphical representation of seasonal events that drive consumer buying patterns. From a comprehensive array of opportunities is easier to explain internally and externally campaigns to run based on seasonal events and celebrations.
Bottom line: picture and graphics help to define scenario in a more intuitive way… this create participation in the discussion and involvement in the decision.
Clarity is essential…always!