Since there are a limited number of save slots in the Xbox version, I would selectively delete older saves (leaving ones at key points, like levelling up or before entering certain areas, and delete ones just made periodically while exploring or clearing opponents), or newer ones if there were a couple saves relatively close together, so I could make new saves each time. I backed up the saves to a USB flash drive a couple times, as well, when there were no good candidates for deletion.
