HOW I CLEAN AND USE MY PLUGS:
As far as cleaning of your tools here is what I do to mine. I clean them in the hottest water that I can stand to the touch while using anti-bacterial, non-abrasive, lotion free liquid soap. Rinse off soap, cotton ball with rubbing Alcohol rub down, hot water rinse again. Alcohol leaves a residue so I always rinse good. Then I pat dry with soft towel, let air dry and cool down. Then into a safe place it is put away until next use. I always rinse under hot water to warm water before use again. Everything that I have told you is just what I do and in no way are directions in anyway. For me, I prefer to use Surgi-lube which is found all over the net. I also prefer to wear one of my plugs for a day, then a couple of days without. The reason is to never let my cock to become use to it. Kinda like when you get a piercing, after a while you forget you have them. I want to feel my plug. Thats the whole point.
HOW TO SIZE RINGS:
Proper fit is very important. For a conventional cock ring, here's how to measure: First get hard, then take a string and encircle it under your balls and up around the top of the penis. Pull the string until you have a SNUG but comfortable fit. Mark the string on both sides where they meet. Take it off and measure between the marks. A tailor's measuring tape can also be used, if you happen to have one.
Divide this measurement by pi (3.14) and you now have the inside diameter of a ring that will fit you well. Here are some examples:
If you measure 4 inches (102mm), then your size is 1-1/4 inches (32mm).
If you measure 4-3/4 inches (121mm), then your size is 1-1/2 inches (38mm).
If you measure 5-1/2 inches (140mm), then your size is 1-3/4 inches (45mm).
If you measure 6 inches (152mm), then your size is 1-7/8 inches (48mm).
If you measure 6-1/2 inches (165mm), then your size is 2 inches (51mm).
If you measure 6-3/4 inches (172mm), then your size is 2-1/8 inches (54 mm).
If you measure 7 inches (178mm), then your size is 2-1/4 inches (57mm).
If this is your first ring, and you appear to be between 2 sizes, go with the larger size.
While you are still hard, or even if you aren't, use the same technique for two more measurements: first around just your penis at the base, and then just behind the glans head. You will really enjoy the new Designer Head and Shaft Rings, if you haven't already. They're loads of fun to wear for decoration alone, but create exponential excitement when you're swelling and swollen.