Seldom do I fish with plastics but recently decided to dig them out of retirement.  I had forgotten how many little things you could do to get a little edge.  Some of the plastics I was fishing with were scented with a coffee smell.  I decided to take the worms out of package and put them in a empty instant coffee jar(surprised how many plastics you can get in one jar).  The next I decided to put a few coffee crystals in the jar and later added a little water.  The following week I took the jar of coffee scented worms with me bass fishing.  Needless to say it was one of my better trips.  Why not give it a try?  It might work for you as well!
Good luck and good fishing.  Uncle Tom