The contacts section of your phone can be your most valuable data, but sometimes it's the most disorganized.
The free iPhone and Android app Smart Merge can help.
Once you download it, a few taps will merge your contacts if you have people or numbers listed twice.
It will make suggestions for entries to delete if there's missing information, and will also prompt you to back up your contents to a cloud storage system of your choosing.
You're phone might be underperforming or losing its power due to a handful of battery draining apps.
Android users can diagnose the power hogs by downloading a diagnostic tool like the.
Free GSam Battery Manager.
Apple devices running iOS 8 can find battery usage stats under the Settings app.
And finally, if you haven't yet set up a password manager on your phone, now is the time.
LastPass is a great option for all types of phones.
It will store your complicated and unique.
Passwords for each site, so you don't have to remember them.
The mobile service costs $12 a year, but it's invaluable when it comes to giving you peace of mind.
In San Francisco, I'm Kara Tsuboi, CNET.com for CBS News.