Describe something that you can't live without (not a computer/phone). You should say: what it is, what you do with it, how it helps you in your life, and explain why you can't live without it.

I'd like to talk about one thing that I can't live without, which is my wristwatch. It was a gift from my parents on my birthday, and I have been wearing it almost every day since then. It is simple, elegant, and very comfortable to wear. I mainly use it to check the time and [...]