I like to add on at different resorts. Disney likes you to have the same use year, but no you can have a different one. I have an add on at VB, BWV, and VWL, my home resort and first two add-ons were at OKW. I have a simple worksheet to kept up with the points for me. There was a worksheet on this site to download. Go look for it if you have trouble keeping up with your points. I like to have the 11-month reservations for the first or second week in December no matter where I stay.