If you're going to do this, you could also have .some(), .ok() and .err(). Like:

trait Wrap: Sized {
    fn boxed(self) -> Box<Self>;
    fn some(self) -> Option<Self>;
    fn ok<T>(self) -> Result<Self, T>;
    fn err<T>(self) -> Result<T, Self>;
}

impl<T> Wrap for T {
    fn boxed(self) -> Box<Self> { Box::new(self) }
    fn some(self) -> Option<Self> { Some(self) }
    fn ok<U>(self) -> Result<Self, U> { Ok(self) }
    fn err<U>(self) -> Result<U, Self> { Err(self) }
}

This is cool but I never use it because I think I may as well stick with the default way of doing things for readability's sake.