...So I got the idea to put all the spices on the top shelf of one of the lower cabinets. On trays, so they could be stacked. Didn't work well; kept knocking over the bottles on the lower tray. So, solution: Put legs on the upper tray so it wouldn't hit the lower bottles.
The trays are 20"x14", so I got two 3' long steel bars to form legs with. And then I formed them for the 20" side instead of the 14" side, and now have to un-bend the bars and re-bend 'em.