Hi Jeff!
The 3-1-1 rule is for liquids Gels and aerosols.
3.4 ounces is the maximum per item.
You can have as many 3.4 ounce items as will fit in a clear, quart sized, zip lock baggy.
One quart sized bag per person.
We use 3.4 oz as it is the same as 100 Millileters which is a common travel size.
Medication in tablet or pill form is not restricted in any quantity.
Liquid medication is allowed in sizes over the 3.4 ounce limit as long as the amount is reasonable for the itinerary of the person.
Oh! and be sure to pull out your quart sized zip lock bag and place it into one of the gray divesting bins. If you leave it in your bag, they'll see it on the xray screen and call for a bag check.
Lap top computers must also be removed from their carry case and placed into a gray bin by themselves.
Be prepared to take off your shoes. so wear clean socks! LOL.