I agree, smart phones to me are worth their weight in gold! I'm of an age wher I can easily tut-tut (and I have done!) at the way some people immerse their lives into them but used sensibly they have saved me so much money. I've never done a proper financial comarison between the 'old' way (driving to and shoppings in shops) to the 'new' way (ordering as much as possible on line) but the 'new' way is really good. For me this month alone, two on line shops from Tesco, organised three passports and two Power of Attorneys, bought a bivi, organised my new driving licence, paid my car insurance (mine went down by £22) set up an appointment with my doctor, changed our gas and electricity provider and have sorted a few other things out as well. All from my phone! Some days I've just sat on a stile in the sunshine doing this and that, then off walking or running again. Why go home to sort out matters when you can do it in a variety of nice places.What really helps is my folding bluetooth keyboard, typing on a phone screen keyboard is such a chore!
Then of course there are the other savings, no need to buy a TomTom thingy, mines on my phone and its free, so are my maps, copiies of train tickets, copies of documents, etc, books, a mi-fi phone, bus timetables, its my camera, I can type or speak reminder notes, its my diary, the list seems to be endless. In the 'old' days I'd be driving here and there, spending time gassing to human beings behind counters, postage, envelopes and on an on and on, spending money on fuel, lees wear and tear on tyres, engine, etc and I even suspect my shoes are lasting longer! Plus everything is back up on my PC when I get home. Brilliant!
Of course there is always a downside, I must not lose it, or have it stolen from me!