Use your phone to record special techniques for the things you like to do.

I like to fish.

Every guide I have used has particular ideas on the correct way to rig your line for different fishing techniques. I use my phone to take pictures of special lures and tackle that professional guides use so I do not forget. The photo helps me remember what lure color we used on a particular day, cloudy or sunny and the GPS associated with the photo helps to recall what lake I fished.

Let me know what what special senior ideas you have for your smartphone.