Taxes - what to claim?

I was hoping there was a easy way of doing this. I've been told so mayny different things by different people that it's confusing. I'm in Ontario. What do I claim...and what paperwork do you suggest I have with me.

i.e. people have said you can portion off some of your mortgage, hydro, cable etc.

I have my gas reciepts, grocery, daycare items (toys, high chair etc.) already put aside. Do I have to bring my hydro for the year as well? Mortgage paperwork? Bank statements?

If there is a MASTER LIST out there I'd LOVE to see it...please & thank you!

http://www.cra-arc.gc.ca/tx/bsnss/tp.../menu-eng.html Here is what I have found for Ontario.