Every time I vacuum the sand and gravel out of my car, I destroy another vacuum cleaner. No kidding! I've destroyed three vacuum cleaners in the last ten years or so, and every single time it's been the bloody car that killed it. They just can't take the diet of neat gravel.
Anyway, I've taken to going round to my friend's house and doing it with blow instead of suck. Just park it in front of the shed and whoosh it out with the compresser. Takes a while 'case you have to go over it a few times, especially if you don't have a handy breeze to help, but it does the job. Indeed, in some aspects it does a better job.
Anyway, I blasted the sand out of the old girl yesterday and the driveway gravel is that little bit deeper now.