1. Kitty Litter Box / Door

This should be pretty high on our priority list -- the door from our kitchen to our garage needs to have a kitty door installed, so that we can house the litter boxes in the garage. I'm tired of having kitty litter in either our bathroom or in our kitchen. I am worried that Amber might have a problem with it though -- she seems a bit skittish about the whole garage, but I bet she'd warm up to it.

The other concern is Lockheed, who is currently relegated to life in the porch/garage ... a kitty door to the kitchen would mean that she could come in as she pleases -- and PEE on our furniture! I've seen "keyed" kitty doors, that only allow certain pets in. Maybe we should consider that.

Estimated time needed: 1 - 2 hours? After having all the parts.
Tools needed: saw (I assume), screwdriver, kitty door, caulk?
Estimated cost: cost of kitty door/replacement door for garage?