No matter where you like to shop, it’s worth knowing what you should buy and where. For example, there are some things you should never buy from the Apple Store, just like there are some things you shouldn’t buy from Best Buy. And there are at least a few things you shouldn’t buy from Amazon too.

Likewise, there are some things you shouldn’t buy from your carrier. Most of us don’t visit our carrier’s store often. But whether you’re in the store buying a new phone, getting your current phone repaired, or just because you’re at the mall, there are all kinds of accessories out there that can tempt you. Don’t give in! Here are some of the things we don’t recommend buying from your carrier.

1. Smartphone cases

Do not buy smartphone cases from your carrier |

If you’ve just received a new phone, it might seem like a good idea to put a cover on it as soon as possible. (We commend you for your responsibility.) But if you pick up a smartphone case from your carrier’s store, you’re pretty much guaranteed to pay too much for it. It is important to protect a brand new smartphone from bumps and bruises. But if you can make it home, just do some research online and order what you need from Amazon or another retailer. You are guaranteed to get a better deal, and maybe a case that is better able to protect your phone in the event of a drop.