Inspired by G Eagle and Stew62, and fortuitously finding some forgotten funds in my paypal account I've ordered a Smittybilt G.E.A.R. Molle panel, which I hope will finally put an end to the problem of storing little things in a boot often occupied by a curious golden retriever:
(I ordered the one for the JK, natch - I think that might be one for an older Jeep model)
It's getting here surprisingly quickly - arrived in Alexandria already:
Hoping beyond hope that it'll get here this week so I've got it for next weekend when it would be really useful to have.