The Ladies' Book of Etiquette, and Manual of Politeness

To drive, trunks and all, in such a case, to your friend's house, without a word of warning, is unkind, as well as ill-bred. You force her to invite you to stay, when it may be inconvenient, and, even if she is really glad to see you, and wishes you to make a prolonged visit, you may feel certain she would have preferred to know you were coming. If she really loves you, her natural desire would be to have everything ready to give you a comfortable reception, and not have to leave you, perhaps with your traveling costume on, for an hour or two, while she prepares a room for you. It is not enough to say, at such a time, "Don't mind me," or, "Treat me as one of the family." However much her politeness or love may conceal annoyance, be sure, in her secret heart she does mind you, and remember you are not one of her private family. To take the liberty of going to the house of a mere acquaintance, for a night or two, while traveling, without invitation, is making a convenience of them, and wears the appearance of wishing to save the customary hotel-bill, so, while it is extremely ill-bred and impertinent, it is also excessively mean. In case of relationship, or long intimate friendship, an unexpected visit may be pardoned and give pleasure, but it is better to avoid it, as the pleasure will surely be increased if your relative or friend has time to prepare for your reception as her love will prompt, and arrange her duties and engagements to really enjoy your company.