A very simple tip.
Whether you use pour-on or aerosol spray type scents, try soaking your favorite lures in a plastic ziplock Baggie before your next trip. I keep a couple of my favorite color plastics soaking all year long, this allows the scent to penetrate into the plastic as well as keeping the plastic soft. This also allows the scent to get on your hands which is ok when changing baits.I do keep a can of my favorite scent on my boat anyway . When spraying my lure about 1/4 goes on the lure, 1/4 goes on my boat carpet and the other 1/2 goes into my fishing partners eyes and mouth. Depending on the scent, this either makes him mad or hungry. Good Luck.