Lib-Dem is a valid choice :).
I suspect your neck of the woods is much like my home constituency, back in Essex. All very green and leafy, and a sea of blue at election time :(. Still, maybe yours can be the vote that knocks your home seat to that rather fetching orange the Lib-Dems have so bizarrely chosen as their identifying colour :)

I hope it wasn't too nerve-wracking when you finally got to it.
*hugs*