Filter your pictures with a Random Dither!
Ideas:
-make a picture you have look like it was taken with an old digital camera or feature phone
-decrease the required disk space to save a picture
Instructions:
Step 1. Select a picture directly from your camera or gallery
Step 2. Filter your picture with Picture Dither Random!
Step 3. Save a copy of the filtered picture back to your gallery
Step 4. Send the picture directly to an email or another application