Definition. 1  Lactose intolerance refers to the inability of the body to digest lactose. 2  Lactose is the form of sugar present in milk. The enzyme lactase, which is normally produced by cells lining the small intestine, breaks down lactose into substances that can be absorbed into the bloodstream.
1 Tipping upon drop-off of your car is totally optional and is not done by the majority of drivers. Tip your valet when your car is returned to you from the parking lot.  A tip of $1 to $5 is the typical range, with $2-3 being most common.
I noticed on all the car service sites that a 20% tip is expected - is that also the typical tip % for a taxi?. Like most tipping, it depends. Some would consider a 20% tip for a taxi to be on the high side, others would consider it normal. My opinion is 10% is bare minimum, I usually tip 15-20% depending on if the drive helped with luggage or whatever. New York City, New...