Set your resolution high

It goes without saying that the higher the resolution of your photo, the better quality it is. When taking images with a smartphone camera, try to go as close as possible to the subject rather than zooming in when you take a shot. You will get better-resolution photos cropped, than zoomed in.Of course, with higher resolution photos, you come across the problem of having enough storage to store them all. You can solve this by storing your photos externally, rather than in your phone. Try photo-sharing apps or cloud storage services like Picasa or Dropbox, or you can even consider getting an Eyefi SD card to automatically do the photo transfers for you, via an Internet connection.