I'll buy her a handbag, then see how I get on.
Cheers Steve, I'll have a gander at that.
Fully understand the wife's point of view, maybe you could look at a Rondinax (I think that's how you spell it), or the new Lab-Box http://www.lab-box.it/ . I plan on checking them out in person when in Rome later this year.
This, and two or three small (one litre) bottles are about all you need, and this would all slip into a container suitable for safe out of the way storage.
I'm also pondering how I can sneak an M7 without her noticing.