Decisions?

[Carlos CM (Mexico)]

At the office, on my desk, I have always two: HP 32sII and HP 48SX (are my favorite and by their color, are beautiful).
To my classes I always carry a 11c and 35s
To my meetings I go with a 15c (everyone quietly watch it. No one asks me what is that rarity so beautiful...)

In my car always carry a 14b, when I go to the bank and other "simple tasks ..."

All of these use it daily, it is not a difficult decision