Plastic baits storeage tips?

I am having trouble with some plastic baits color fading. It is mostly baits that did not come in a zip lock or were given to me lose. I just have them in a divider box. should I keep them in a zip lock with some type of oil, or other liquid? I store all my stuff in a/c. Any help would be greatly appreciated. Thanks

Keep them in the dark. Sunlight will fade them out.CF

I put mine in ziplock bags and pray shot of PAM in the bag and shake them up....then store out of direct sunlight.

Plano box stored inside of tackle box out of sunlight. Give them a shot of worm oil or pam spray occasionally.

Thanks guys, will try the zip lock and pam. The only time thy are in the heat or sun is when fishing. It may be they are just old. Thanks again.