My sister is awesome and got me a Griffin Shinemaster antique shoe shine kit for Christmas. It had a lot of stuff inside (5 different brushes and 5 or 6 different polishes). Are these polishes probably still good if they're old? Are there other things I need to polish my shoes properly? Any techniques to doing it right? I'm sure there are a ton of videos showing how people do it, but I come here for the CORRECT information.