I go for a walk in the morning and take my audio recorder with me. It is amazing how many ideas I come up with when I am moving. I record everything that comes to my mind. The walk lasts for roughly 45 minutes, so I come up with lot of material. This is also helping me think better and stay on topic. I usually come up with at least three to five blog ideas.
When I get home I create a separate draft document for each blog idea in my laptop. Currently I am not using a speech to text software, but eventually move to that if it would make life easier.
Then I let the blog ideas sit and make revisions to it. When I think I have sufficient content and is relevant, I will make a final edit and blog it.
Blogging is work, but you can make it easier for yourself by getting into a process of creating blogs. It is amazing how many ideas you can come up with when you are moving; your brain gets excited and starts coming up with all kinds of ideas. Now you have a choice to pick the bsest idea for your blog.