Small and light tablets with 7- to 8-inch screens make better travel companions than their larger siblings. They're lighter and easier to hold with one hand so we tend to take them with us more often. The Aryca Rock Mini ($70), which fits the iPad Mini and similar-size slates, is waterproof up to three feet. It also protects against dirt and drops, and comes with an adjustable stand. Have a full-size iPad? The Rock ($80) fits the larger slates and provides the same level of water, sand and shock protection as the Rock Mini.