Three wishes. Normally, one wishes for money or other such things, but...
1. I would wish to be as knowledgeable about cars and how to fix them as my roommate, or, barring that, to be able to learn it easier;
2. I would wish for a bigger, nicer house for my patchwork family and I to live in;
3. The final wish will simply have to remain private, but it is my fondest wish of all. The one wish that, no matter how I try, I'll never be able achieve. The former two wishes are within my own reach without a genie, but this one is not so much.