We’ve all been there: WiFi that defies connection, usually at the very moment you need to post, edit or delete something right now.

If you’re a professional communicator in the digital age, Internet access is non-negotiable. You can’t leave yourself (or your employer, or your clients) to the tender mercies of coffee-shop connectivity.

For employers of professional communicators (and for freelancers), that means springing for whatever added cost your mobile teleco charges for tethering and a decent data plan. It can be pricey, but so is being unable to deal with an online firestorm until an overworked barista is able to restart the router.