If you’re buying a new iPhone, the next stage after deciding which iPhone to buy is to get a case to keep your device safe when you inevitably drop it. Another good reason to use a case is that when you want to upgrade in a few years’ time you’ll get more money if you trade in an iPhone that’s in good condition. There are so many different kinds of cases you can buy. Most offer protection for your iPhone, but some are more hardy than others. You can buy cases that double up as wallets, cases that are super thin so they don’t add a load of bulk to your iPhone, and cases that are clear so you ca…