What is idiom for two peas in a pod?

I dont know if you want me to provide a example for this but this is what i came up with:

We are  like two peas in a pod or The Twins are like two peas in a pod.

1one sharp difficulty presented itself. in the intervening twenty-five years my name had become reasonably well known.2 this being so, my trip demanded that i leave my name and my identity at home.3 i had to go alone and i had to be self-contained, a kind of casual turtle carrying his house on his back.4 with all this in mind i wrote to the head office of a great corporation which manufactures trucks.

The answer is a pp at least 20 words long n word