Ok, apparently our first "What is it?" was way too easy, cause everyone guessed right. In Thailand, they don't wear their shoes into the house or the office. I suppose it has to do with all the dust and dirt that tends to accumulate as we walk around. In any case, shoes are left outside or put on racks, and then we go barefoot or wear other inside-only shoes in the house. So this is what our shoe rack normally looks like. We all have flip-flops, too, but we leave those on the front porch.
Hmm, that's different.