Online services reliability

We rely on a lot of online services these days. 

Instant messaging, email, social networking or simply a bank account.

So if one of the online services we use goes down, we could face a number of problems.

Our credit card might not work, our grandma won't be able to reach us on WhatsApp, or we won't be able to access our email with the code we need to confirm our account.

The internet is great, but it would be wise to have a plan B in case one service goes down for a while.