For inside corners, the long point of the miter is always at the back of the molding, against the wall, and against the miter saw fence. For inside corners, you measure to the long point of the miter and you cut to the long point of the miter.
Liquids. If you have liquid or gel personal beauty items or food products, pack them in your checked baggage. Space in your carry-on should only be reserved for 3-oz. bottles of liquids or gels. There is no size restriction on nonflammable liquids and gels that fit in your checked luggage.
The 3-1-1 rule limits the amount of liquid you can bring on an airplane in your carry-on luggage. Passengers are limited to using containers no larger than 3.4 oz. for their liquids. All containers of liquid which must be placed in a 1 qt., transparent, plastic, sealable bag.