How do you decide how much to spend on your kids for Christmas. Mine are still fairly young so they aren't asking for $200 gifts thank goodness!

Last year I got both kids 6 things and that was that - I didn't really add up to make sure I spent the same on each child.
I plan on doing the same thing this year. although my 5 yrs old things are more pricey than my DD's.

How do you do it?