I'm sure this has been said before, but I'm going to say it again.
Buy Wedding Insurance!
I had planned to take out a policy months ago and didn't get round to it. If I hadn't dithered the policy would have covered me being unexpectedly made redundant earlier this week. I now have a policy in case anything else happens.
It shouldn't be that big a deal for anyone to find less than £100 to buy a policy - you could be saving yourself thousands. Its not just about suppliers not turning up on the day but all those things that could happen between now and your wedding day.