So I've had my iPhone 4 since it was released (over 2 years now) and over time and IOS upgrades it seems to be sluggish / not the greatest. Since it will be a while before a new phone comes out I wanted to reset it back for a fresh start and also to get rid of more than half of my apps that I never use. I'd really like to keep my photos and music, but is there any way to keep all of my saved texts or will they erase ? What's the best way to back up what I need and start fresh ? Thanks !