So, my car's totally shagged -- apparently the big end's gone. What is a "big end", anyway?

Anyway, it's not worth fixing, so I'm probably going to have to scrap the car.

It's my first car, I've no idea what I ought to do, so I thought I'd wander in here and ask. One of you will have had to do this in the past.

As far as I understand it, I've got to do a few things:

1) Get the car to a scrapyard. It's currently sitting on the garage forecourt. How much do scrapyards generally charge for coming to get your car?
2) Notify the DVLA. Apparently, this is as simple as handing them a piece of the V5. Is it this simple? Do I need the scrapyard to fill anything in?
3) Tell my insurance company -- there's no point in claiming for a write-off (or is there?) -- but I could use a refund.
4) Send my tax disc in for a refund.

Anything else I've forgotten? Any tips?