To Come in Handy

Because of my best friend, Nana. I want to learn English again. :) Though I am working with India's people, it doesn't mean I am good enough in English. I need practice more and more to improve my English.
A tip that Nana wrote in her blog is using an idiom to reach my English. *niceeeee tip*
Starting now, I want to share the idiom that I got from newsletter from here 

to come in handy : be useful. 

Let's try to put in a sentence : 

I bought a gift for you and I hope it might come in handy for you. 

That's my sentence, what about you? and I hope this post also come in handy.