One of the many things that is great about Moodle 3 is the footer. It means that resource pages can be totally free of clutter.
I have moved the Admin and Navigation blocks to the footer.
If you don't like them there on a particular page, then you can move them back by clicking the configuration icon (a cog) on the block and changing where the block appears "on this page".
Let me know if you need any help with that.