SWIM has tested this and while SWIM is very aware that it is ones own mindset, set and setting that are large factors, SWIM found an easy to do helper that assists with the transition into LSD.
This method is perhaps safest if one is close to a track. A stationary bike would do great as well, of course. With an educated guess begin a safe workout approx. 15-20 minutes before the LSD/Shrooms should be switching the brain into hyperdrive. The example provided here is to simply do the stretching out and then begin jogging on a track. Keep that steady slow or moderate pace up until one is sure the throws of psychedelic adventure have taken root.
The jogger's high appears a great positive modifier to the trip. Three times now it has created a proverbial halo of glow that shines the inner light to a physical sensation SWIM feels is a useful tool. Blah blah.
Things to take into consideration:
This would not be advisable if you must travel far or use motorized vehicle to reach the destination, unless of course SWIY has a sitter performing this function. I even see it as being irresponsible if one were to use a bicycle to get to and from or any form of transportation if the experient is the pilot.
Doing this later at night may lessen other human interactions, which always seems to be the wisest course of action.
Use a watch. As SWIY may know, temporal distortions are pretty much unavoidable. The comical side to this is what may feel like hours of jogging really are but a few minutes.
Know your physical limits. LSD and other drugs may allow you do push harder than your frail body would normally allow. There's no need to injury yourself or to feel any unneeded pain later on.
This is basically the same thing as dancing may help induce, SWIM assumes.
It's a clever idea, really. Swim's heard of folks going for rock climbing/hikes in the Garden of the Gods in Colorado Springs in anticipation of a high dosage acid trip. No need to look at Swim's watch to see how long it had been because when it was time, swim just involuntarily flopped on the next rock to watch the sky. No, the watch was there to remind him to call in sick for work, which should be avoided during the rock-flopping stage if at all possible.