On the side of the trunk I have a first aid kit held on by velcro strips. I used the natual endenture in the trunk lining for that. I can thank the "OldRoadDog" for that idea. Like The OldDawg, I replaced some items in the kit for the more serious injuries.
I used two cargo nets. One net creates a small storage area for smaller items like groceries, bleach and tall bottles. The next cargo net provides a larger area. I use this for items like the large bags of dog food. I have a black Lab,BJ, and this large bag doesn't last him long. On the other side of the net are the staple items I mentioned that are in a black crate. This crate use to slide about in the trunk..specially on spirited errand runs!
Kind of simple stuff but if it gives you an idea it was worth the time of posting this thread.