Each month I pay above the amount I'm required to pay for Child support and spousal support.

Can I claim this extra as alimony payments for 2013?

Example: I owe 500 per month child support + 300 per month alimony, but I give 1000 per month to my ex.

So am I able to claim 500 per month (1000 paid minus 500 child support) as my full alimony payment to her?

Furthermore I also pay half the daycare expenses and school lunches for the kids. This is above the 1000 in my example above. Am I able to claim those overages as alimony payments to my ex as well?

Nothing in our agreement states I am required to pay these extra things. I do it just to help my ex.