What is a nor'easter?

A nor'easter is a large storm, most common in winter, that travels south to northeast with winds coming from the northeast and characteristics similar to a hurricane. A nor'easter is expected to coincide with Hurricane Sandy on Monday, intensifying the storm's effect. A nor'easter often causes dramatic flooding and coastal erosion as well as hurricane-force winds.

Why do some charter schools stay open during severe weather when DC Public Schools close?

Each charter school is considered its own school district, so it makes individual decisions in the same manner that DC Public Schools does for its district. The technical name is "Local Education Agency." Although charter schools can elect to stay open, most -- if not all -- are expected to close their doors Monday.

How much is too much for a Halloween costume?

The average person will spend $79.82 on decorations, costumes and candy for Halloween this year, according to the National Retail Federation's 2012 Halloween consumer spending survey. That's a big increase from the average invoice of $72.31 from 2011. Total Halloween spending is expected to reach $8 billion in 2012, with a record 170 million people, or 71.5 percent of Americans, celebrating Halloween this year. More than one-third are looking for costume ideas at stores, while about one-quarter are asking their friends and family for advice. Of those who decide to celebrate with costumes, the average person will spend $28.65 on his or her get-up, a slight increase from $26.52 in 2011.