depends on your tissue loading from the last profile. If you're deco certified I'd hop on O2 for a while, if not I'd consider cutting the last dive short and depending on where you are, play around at somewhere above 30ft until you are as out of gas as possible to unload your tissues.
My Petrel is set to clear me at 70% loading, it also tracks where they are during the SIT so I can check right before I hop in a plane and since it has an altitude sensor I can also keep track of it there.
Now, this is strictly my opinion, it will come under fire from everyone on here and goes against quite a few things, but here it goes.
Make sure you are very hydrated before you get in the water, especially for the last dive, but all through the trip.
I'd get out of the water with as low of a tissue loading as possible, holding safety stop as long as you can. I'd then make sure that I keep moving around to keep the blood flowing and try to stay as warm as possible to help with offgassing, may even partake in a beer or two to help with that. Nice warm shower the morning of, avoid any caffeine if possible, and make sure you're fully hydrated, take a brisk constitutional and should be good to go.
Points of contention above, alcohol, I think a shot or two, or beer or two or three.... isn't a bad thing if done sufficiently long after the dive, many disagree, I also don't think that warm/hot showers/baths are all that bad either as long as you aren't very cold during the dive to prevent skin bends.
