Three. Remove visual sugar when it’s not necessary. Before its re-design, Dropbox used to have icons next to every menu item in the left-hand side navigation panel (on the left). They looked nice, but didn’t have almost any practical meaning: if you were to hide the text next to each icon, users wouldn’t remember what it means. In the new design (on the right) all the icons are gone and the menu now is not only much cleaner visually, but more easily comprehensible as well.