Wow! If I wasn't confused before, I certainly am now. I have to admit I am a tad bit excited by the amount of excitement my little question generated. I appreciate all your guidance!

I would certainly use in most instances "Everyone is coming to our house", but have found "Everyone is coming to Mike's and my house" on the tip of my tongue several times, accompanied by a sinking feeling that I was risking my reputation as a Scripps Journalism Grad with relatively good usage, compared to many I know. So, when I found this site, I thought it warranted a post.

That said, I think I will still continue on my quest to rid the world of extraneous apostrophes (our local Rotary club newsletter boasted "This Week's Birthday's" for years until I joined last month;)), and I am having a party this weekend...you're all invited to Mike's and my house to join the fun. BYOB.

Thanks again,

Amanda