Any advice about getting a good lifespan out of my iPhone battery?

I've had an iPhone 5 for almost a year and I'm really worried I've ruined the battery. Nothing odd has happened to it but I just think I charged it overnight one too many times so I'd like to… Well reverse the damage.

I know to run it all the way down to 0 (I have just always done that) and I charge it to 100% but I'm worried I ruined the battery bc I would charge overnight. Also i use about 80-90% in a day sending a lot of texts ha, using the Internet, maybe an app or two, and then listening to music for probably 3 hours.

Question: What things do you do to protect your battery's life? Any advice welcome but hey the more expertise the better.

Follow-up question: Given that sort of activity is the battery's drainage (80-90) unusual? Or is my battery okay?

If you have lots of apps on your device then it's usual to drain that much of battery in a day. And as tips to save your battery and take it long way to enhance it's life, just don't let it charged overnight. A phone's battery just charges upto 100% in approx 45-50 minutes. So make sure you don't keep it on charge whole night.

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