Working with a dev board, whether it's a Genuino, Raspberry Pi, or whatever else, is all kinds of fun, but one problem is you're usually working with the board just sitting on a table. Make shows off a simple way to add rubber feet to improve that experience.
When your dev board is exposed, random bits of metal can get in there and short out exposed solder points, cause weird behaviour, or just scuff up the table you're working on. All you really need to do is mount some screws onto our board and add some rubber feet. How you do so varies depending on the board, but it's one of those simple, easy things you can do at the start of a project that makes the whole thing a lot nicer to work on.