Gaffer tape is always attracting a lot of praise for it's miriad of uses,but for me cable ties have proved invaluable as standard kit when camping ect. Anyone?
Brings to mind: Conficious says - Man who go camping with woman, have naughty intent.
Or
Silence is golden - and gaffa tape is silver. 
Cable ties, duct tape and zip-lock plastic bags. If you can't fix it with those three you are in real trouble.
Don't forget rubber inner tube and fencing wire. Using cable ties is getting a little fancy for me.
I was showing my friend a used fin I put on my board, I said it needed a longer screw and I couldn't find it anywhere so I had to mail order it.
He said the tread doesn't have to fit exactly, close is good enough ???!!! He's from Russia.
Cable ties and velcro are probably two of the greatest inventions of modern times. We take them for granted but the amount of force they can sustain for the minimal effort to apply them is surely unsurpassed
a bigger hammer and more heat will fix most problems. don't let anyone tell you a square peg won't go into a round hole. (yes i am a boilermaker).
The TRG use something like 15mm cable ties. They would have a loop strength of something like 200kgs I reckon
Large reusable cable ties are my favorite.
They have a little tang to release the catch.
Love'em.
Cable ties are brilliant for those considerate people who like to drop their cray pots with 15000m of rope right in the middle of a surf break
3 normally does the job
WD40 is for sooks!
A few years ago I had a mate call me,
He had problems with getting the tyres off the rims of his loader- rusted together due to working on one of the W.A. salt farms.
Detcord fixed the problem real quick
did 4(?) sets of rims that morning!
Had another easyfix for recycling old dozer tracks that were seized after sitting in the weather for umpteen years, a little detcord and powergel soon shook the rust off and freed them up!
Over the years I found Dr Nobels rapidly expanding tools to be very effective at all sorts of jobs including cleaning out and sealing leaking farm dams 
Stephen
Cable ties are not all the effective as a fan belt. Got about 5mins running for 30minutes of work. Though tensioning "the belt" was a tool-less affair.
