Before you upgrade, if you haven't already, make sure you have backed your phone up to the Cloud before you upgrade. Then upgrade to 7.0.2. It's really good - the only thing that isn't good is the calendar but I found a calendar that I like - I had to pay for but it's good. I hope this helps you as much as it has helped me. So thank you Alex Kleinman because you have so helped me.
9 Ways To Improve iOS 7's Battery Life
See you soon
American by birth and MOUTH
but British in every other way