what i usually do is park it out in my field ... put my hose attachment onto mist or gentle shower and get it all good and damp. I then can "risnse" a majority off without going high pressure ... always make sure you get under any plastic "protectors" around the fenders and such ... get underneath the rig and get it all off the frame and axles and everywhere else ... open your doors and clean around there ... check up under/behind running boards, if you've got them ... get under and around bumpers and such ... go at it from every angle, even if that means you end up muddier than your rig began ... it prevents a ton of rust ... mud is THE enemy ... don't get me wrong, i love going mudding and offroading, but mud requires no skill ... heck, i've taken my taurus mudding ... and not just gravel road wussie mudding ... i'm talking actual muck and gluck and goopy mud ... and i didn't have to get towed out ... regardless of how you wheel, what you wheel in, or whatnot, make sure you get it dang clean SOON after ... don't wait a month to show off how cool your mud is ...