I remember the concrete-floored attic in quarters at Lsarbruch that LB mentions - my NBC respirator came in handy to avoid breathing in dust when sweeping in preparation for march-out.
Marching out at Henlow was going well until the Families Officer lifted the corner of the sitting room carpet and found half a pack of playing cards under it. We hadn't played cards in the two years we'd been there, so they must have been left by the previous occupants.
On the plus side, 45 years years after retiring I still regularly use a garden fork and two pudding basins, all marked with broad arrows, that were written off for minor defects at various march-outs.