I really hate squirrels and they know it ... but in case you don't know ... it's illegal in many states to trap and relocate squirrels. You might want to check into this and make sure to avoid your local Game Warden.
I ended up buying a sling shot and have gotten pretty good with it ... I haven't killed one yet but I've sure got a lot of them limping around from time to time ... If they see me come outside with the sling shot they scatter and I can hear squirrel warning chatters announcing the crazy lady is out and she's armed. They also have a different chatter for when I come outside without the sling shot.