For those of us afflicted with the above deficiency, yours truely included. Yesterday on the web I found a treasure trove of info. I have a new IPhone V and the battery life was incredibly short. So I had the bright idea to do a web search on "IPhone V tips". I'm sure this will work for just about any device someone is not familiar with. Needless to say, I could not believe all the short cuts and tips listed there. There are pages and pages of info and apps so useful in everyday use. Try it you'll like it.
