|This spring I began an extensive search for a light weight sturdy duffle bag/suitcase that meet the carry-on criteria of 22"x14"x9". During this process I read many descriptions of ready-made bags, including tote bags. Several higher end makers touted their light colored linings (white and yellow were commonly used) as making it easier to find things in the bottom of the bag.
One afternoon I tried an experiment. I started with a black tote bag. First I just dumped a bunch of misc items that I might carry with me while traveling into the bag. Then I would try to pull a specific item from the bag. With a fair amount of rummaging, the item was located. Then, I used a white pillow case to simulate a lining and put the items back into the "lined" bag. This time it was easier to see into the bag to find my item, almost as if there was a dim light in the bag. Then, without telling him what the principle was, I made DH go through the same sequence where I would ask him to find this or that from first the black bag and then from the "lined" bag. When he had completed the tasks, I asked him if he found one bag easier to use than another and he found the lighter lining to be "helpful". Weird, but there is something to this idea.
In the future when I am making a bag, especially one that is a bit deeper and larger, I will be using a light and bright lining fabric.