The meaning of 'as easy as not'

Question

The passage below comes from Emily's runaway imagination by Beverly Cleary.

The ride back to town was peaceful enough, although Emily was a little nervous lest they meet a cow in the middle of the road that might force them to stop. It would be awful if they had to stop now after all she had been through. When they came to Main Street, she said, “I can walk home from the store, Grandpa, as easy as not.”

Could you explain to me the meaning 'as easy as not'?

And if you don't mind, give me another example sentence.

Answer 1

It means there are two options of equal value.

In your quote, Emily pretends she could continue to ride with everybody, or walk, it is all the same to her.

I could pick up your mail for you while you're gone, as easy as not.

This means that while you're away on business, I could pick up your mail for you - or not; it's all the same to me.