Thanks to the kind recommendation of a colleague, Mr Andy Barnes Esq., I've now made a good attempt to tame the rats' nest of wires that I typically carry around - along with a spoon and fork.
I picked up a neat bunch of cord wraps from Cargo ( in Newbury, although I'm sure that they have other outlets ) - they had a buy-two-get-one-free deal, so I paid £15.00 for six of the wraps, in three different sizes
So now I have this: -
which is far far better.
I may get a few more wraps next weekend, just for the odd rainy day ( or the acquisition of more gadgets == more cables ).
Thanks, Andy, good catch.