The first idea is to write in a series. My previous post was about 7 ideas for writing blog posts. This post continues with other blog ideas. Rather than writing one really long post, break it up into separate sections and post them periodically.
Next idea: Write a bunch of posts all at once. Don't post them all at once, just write them in one sitting. Save them and post them over several days.
Another idea: Check if your blog host has the capability to post automatically. Some blog hosts will let you schedule your posts. That way you can write several posts and then schedule them automatically to post even when you're not sitting at your computer. I am writing this post right after I published the previous one, but this one won't get posted for a couple more days.
Last idea: Update an old post. Publish an older post but include more information to update. For example, if your post was about creating a piece of artwork, repost it and include the information that the artwork sold.
That's all for now, I have to go make artwork for an upcoming show.