awesome, sounds like a good idea

i changed the front and rear wheels round on friday night (before a 240 mile drive on sat morning) as the front tyres were somewhat worn and don't give enough grip in the wet. you're supposed to do it every so often anyway so all tyres wear evenly. front left becomes rear right, rear right becomes front left, and the same for the other two tyres. in doing this i came across a few tips:
1) make sure the car is on a COMPLETELY EVEN surface, not something that you think is 'even-ish'. the car WILL fall off the jacks and you WILL fill your pants with fluid wondering if you've broken something. luckily cars seem to be quite tough.
2) once you have a wheel off, put it underneath the axle from where you just removed it and let the jack down slightly so the wheel takes some of the strain. this will help prevent it falling off the jacks while you have more than one wheel off. you could also employ the spare wheel to help you at this point.
3) if you're unable to get a wheel off because it's rusted to the axle, DON'T try to force it; the car WILL fall off the jacks (again). instead, merely spray where the wheel meets the axle with WD40 and also the locating nut in the centre of the wheel. put the nuts back on - without tightening them - and drive the car 20 or 30 yards up the road. turn a corner or two to put lateral force on the connection. i left it until the next morning to re-attempt removal (as it was getting late by that point and i was considering taking it to the tyre place down the road once daybreak befell us) but the wheel came straight off without any fuss whatsoever.
oh, and it turns out the fusebox with the missing fuses is just an auxiliary fusebox, the main one's behind the glovebox. so i'll have to check in there for a burned-out interior light fuse.