Do you use a smartphone to organize your life?  

For long term stuffs, I use google calendar to help me map things out. It's good since I can set up email reminders to be sent to me. I check my emails regularly so no problem with that. If it is something dealing with the immediate time frame, I will just scribble on some paper/self-adhesive notes and stick them around my desk.

I have long stopped using all of the above you mentioned. My daily life and works are literally a routine already. I just put everything in my memory. Except for some special occasion, I penciled some notes on my calendar. I am leading a very busy lifestyle. I don't even have enough time to log in at mylot.

We have a calendar in the kitchen that i write stuff on like dentist dates and other appointments. I also have a few note books knocking around with tasks to do in the garden and shopping list and that sort of thing.
I cant be bothered with putting it on a computer or phone. I would just forget to do it.
Paper and pencil is nice and solid and it helps me to remember to do things because i remember writing the actual words.

I do use my handphone to track my own appointments and upcoming events I will be participating. I do not keep to-do lists as I do not allow myself to be ruled by 'to-do' lists. If there is any important errands that I need to do and in case I forget, I set an alarm in my handphone. Is it considered using smartphone?

I usually just use a to-do list. It's been very useful to me for the past few years. I just make a list of things I need to do and check them off as I get them done. Anything that doesn't get done goes on the next day's list. This is easier for me because I can keep the list in my purse so when I'm out running errands, I can easily look to see what I have left to do.

I had use nokia 6630 smartphone for 5 years. I use almost all the features, i retrieve all my gmail from my phone, syncronize my phonebook with google, use the calendar and alarm tools of course, save much important account on its wallet apps and etc.