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.
Placing bottles of duty-free liquor or perfume in your checked baggage could be risky, for obvious reasons. However, planning ahead and packing a few useful items can help you minimize the risk of having a bottle break inside your checked bag.