Thanks for the great help! I decided to start out with a BCW order, and, over time, may try some of the other excellent suggestions.
Hopefully, now I can "seize control" of some needed room on my RailRax, and box those items that don't have boxes, and are not currently being used.
Although I've enjoyed O Gauge railroading for quite a while, the old adage:
"You become a slave to your possessions"
...certainly can apply to storing trains, particularly when the time has come to learn a few more excellent storage tips from helpful people!