The social and economic status of a family could be determined by the number of servants in a household. The Bennets could only afford the essential staff needed to maintain the home: a butler, housekeeper, cook, and two housemaids. Here, a Lady's Maid would usually perform the duties of dressing and fixing the hair of the ladies of the house. Sarah might be a maid-of-all-work, undertaking all the duties of the home that would usually be assigned to various hired maids.

https://www.kristenkoster.com/a-primer-on-regency-era-servants/

http://www.jasna.org/persuasions/on-line/vol35no1/walshe.html

A room primarily used during one's morning routine for dressing and washing. A woman's dressing room was made to be private and comfortable, and the intimacy of these small places allowed women to entertain small parties of other female guests. The wealthier the woman, the more luxurious her dressing room.

https://janeaustensworld.wordpress.com/tag/18th-century-dressing-rooms/

The Hardwicke Act for the Prevention of Clandestine Marriages passed in 1754, enforcing couples marrying in England to follow certain rules in order to be legally married. One of these rules was obtaining the consent of the father. Any couple under twenty-one needed the consent of a parent or guardian if the child was legitimate. If a couple married without consent, then by law their marriage was void.

https://byuprideandprejudice.wordpress.com/2014/01/28/courtship-and-marriage-in-the-regency-period/

http://www.regencyresearcher.com/pages/marriage.html

Letter writing was an imperative part of Regency social life. It was taken seriously as a real pastime and hobby, as letters were the only way to communicate with long distance friends and family. It was standard for letters to be written privately and it was preferred to write during the morning hours. Women were especially encouraged to become adept at letter writing as it was seen as a necessary accomplishment.

http://randombitsoffascination.com/2014/10/07/touch-quill-ink-regency-letter-writing/

Sashes were accessories that women could wear with any dress, for any occasion. It was fashionable for women to wear dresses that accentuated their waists and bodies, so sashes were wrapped around the waist and under the breasts.

https://en.wikipedia.org/wiki/1795%E2%80%931820_in_Western_fashion#Regency_(1815%E2%80%931820)_gallery