I don't use contact sheets for 35mm for anything other than frame id. I find it 100 times more useful to view the negs on a light box with a loop to tell me everything I need to know about an image prior to printing.
I came to this by means of a $125 scanner that could NEVER, under any configuration deliver an image of any usefulness to make definitive conclusions from. A simple waste of time.
When a printing session is over I may make a contact sheet to accompany the page of negs. But leafing thru a binder of negs identified by roll and date usually is enough to find a frame. I also maintain data bases of processing and printing information. But quite frankly the printing data base in practice is not much help because, for what ever reason, a time later will not produce the same image as was reflected in the DB.