The WordPress editor is more powerful than you think and should be your primary place to jot down your random musings. Take a look at what WordPress can do within itself, from uploading media to embedding from other sites to “zen mode. And check out a couple of basic plugins (JetPack, etc) to see how to supercharge the experience without sacrificing performance or security. Don’t click on the Word icon. Leave Microsoft Live Writer alone. Just hit up your /wp-admin/ and let the words flow.