Yosser
Assistant Pro
Perhaps it would help if you cone off the area in which you intend to place the bag. You can get collapsible cones such as these which would easily fit into the boot. You however, need to remember to remove the cones from the boot, expand them and deploy them before placing the bag in the designated area. You also need to remove and collapse the cones after use and place them in the boot - perhaps these guidelines can be added to Mark's list?