Answer:
I am rarely touched but often held and if you are smart you'll use me well.
From house to house I go, sometimes narrow, sometimes wide. Whether there's rain or snow, I always stay outside. What am I?
I am pronounced as one letter written with three. I come in blue black brown or grey. Reverse me and I read the same either way.
I am a key that is playful. What am I?
I am free the first time and the second time, but the third time is going to cost you money. What am I?
The warmer I am the fresher I am.