Thanks to everyone for comments yesterday. It was a sudden decision in the end but I know it's the right one which wouldn't have been the case a year ago.
I was going through my few CDs and DVDs (to see if Ziffit would take any) which live in 2 of the 4 drawers of the chest of drawers/coffee table that the TV sits on and from the other 2 drawers I pulled out this wonderful collection of cables and electronic bits.
No idea what most of them are for - except the charger for my old camera, so don't know if I should keep them or not.
What a tangle .............I'll probably just shove them all back in the drawers!
And the DVD's and CD's? ........well I only have about 2 dozen of each and Ziffit would only take 1 DVD and 3 CD's, so I won't get rich from that sort out.