I don't really know what to write here. This sort of feels like writing a job application:
"I have excellent problem-solving skills, I like figuring tings out, perfect for dealing with all kinds of issues popping up around the home. I have a good understanding of a broad range of topics and a general thirst for knowledge. I can provide both intelligent conversation and polite smalltalk. My sense of humor is provoking yet not distasteful. I am also capable of providing adequate emotional support when times are rough.
All in all I am very well suited for this position, and I'm looking forward to hearing back from you."
Writing about myself in promotional purposes makes me feel a bit uncomfortable I suppose.