has anyone seen any lotion bases that already have an SPF factor to them, or a way to add it?. As a person that is at high risk for skin cancer, I have to wear the stuff every day. While I like the stuff that I use now, I want to see if there is a way that I can make it cheaper. Also there is a product that is big in europe (SPF wipes) that you can't seem to get here that I know alot of moms would like.