Last night my phone's screen started to fail. It turned out to be really good at failing, because by the time I got home, it was completely black. I rebooted the phone this morning and I can get in, at least.
The worst part about a failing mobile phone is that you could lose all your multi-factor authentication data. If you've ever had to unwind MFA, one site at a time, you know what I'm talking about.
The nearest T-Mobile store opens in half an hour. Cassie and I will be there.