My Warmup Method
Hey MonkeyDude, I used to skip on the warm ups/downs, and now I have bad discoloration! So I started using the wash clothes too, what a mess and hassle! Plus, it doesn’t seem to work that well.
The best way I have found to warm up and down is to use a glass jar, fill it about 3/4 or more full with hot tap water, then put your penis in the jar and press the jar firmly against your body. Then tilt the jar upward slightly so any trapped air raises to the top, leaving your member submerged. (I have a towel handy to put under the jar to catch any drips). Hold for about three minutes.
With practice, you will know how much water to put in the jar so that the volume of your penis displaces most of the airspace.
I have adjusted my water heater so the water is very hot, but not scalding, but I believe it is over 115 degrees (F) at the faucet. I just let the water run for a few minutes, then fill the jar.
I suggest you get it as hot as you can stand without injury. WARNING: Water temperatures greater than 120 degrees (F), can scald you! Experiment, but be careful!