5 free Obsidian plugins that turn daily notes into a low-effort second brain

If you’ve tried to build a second brain — one place to store all your ideas and retrieve them when necessary — you probably already know that it’s easier said than done. I’ve made multiple attempts at building a second brain myself, but ultimately failed because of all the effort required to maintain it. What finally made it stick was Obsidian, its Daily Notes feature, and a handful of free community plugins.