Erasing or “resetting” your Android device takes a few steps and some time, but first make sure you have backed up all your own personal data and photos, because the process wipes everything from the tablet. You should also sign out of any accounts for third-party services like Microsoft Office, Twitter or Yahoo, and remove any external storage cards used with the tablet.

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Start by opening the Contacts app on your Android device and selecting the contact you’d like to dress up with a photo. Tap the pencil-shaped Edit icon in the lower-right corner; if you have multiple accounts on the device, you may be asked to pick one here.

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Many unexpected outgoing calls occur when you do not flip on the lock screen when shoving the phone in a purse or pocket. Without the lock screen to temporarily disable input to the phone’s screen or buttons, accidental brushes, taps or bumps can trigger a phone call or garbled text message, especially if the phone was left with the contacts app or keyboard open. (When unlocked phones shoved in a back pocket make a call this way, the incident is colloquially referred to a “butt dial.”)

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Some smartphone apps that are designed specifically for scanning or capturing digital versions of photographic prints can do a bit more than just take a picture of the picture. When searching for a portable scanning program, read its listed set of features on its app store page — tools like edge detection, perspective correction and color enhancement can make a battered print look much better after its digital conversion.

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