miss prickly and friends

i inherited this cactus from a friend. i've never been much of a cacti person and i'm clueless as to what to do with her. she's been sitting outside my woodworking shop all winter.....she's huge........and thrives on neglect. with the new growth on top it looks like a community of little cactus people with arms outstretched in welcome. i'm not going there..........she's already taught me a lesson in respecting her space. i really need to move her away from the door 'cause i'm always backing out ....arms full of whatever i'm working with and......ouch! well....you get the picture............