For a couple of years now, Google Maps has had an offline-viewing option that can even offer turn-by-turn directions without connecting to a network (providing that you've already looked up the route).
If you're heading to a new city and you aren't sure when you'll be able to grab a Wi-Fi connection, try a mapping app such as City Maps 2Go (Android and iPad), which costs $1 to $2. This app lets you download thousands of maps for offline viewing (the iPad version currently has a promo for unlimited downloads, while the Android version offers five free downloads).
5. Read It Later
Suppose that you like to read Web pages--not magazines and books--on your tablet. Instead of letting your lack of Internet connection frustrate you, try using a service such as Pocket, formerly known as Read It Later.
Pocket lets you save Web pages from your computer, by email, or directly from select apps to a special Read It Later list. Once you've saved something to your list, you can open it from any of your devices, assuming that you've connected to the Internet long enough for your list to update.
Next: Use free texting apps
6. Use Free Texting Apps
Having a Wi-Fi-only tablet with no phone service or data plan doesn't mean that you can't text your friends with the best of them.
Admittedly, texting on a Wi-Fi-only device doesn't make a lot sense for most people--after all, texting is normally used for instant communication, so it doesn't make a lot of sense to have to find a Wi-Fi connection before you can check your text messages--but some people do text casually. Plus, this approach will save you some money.