The original response to this question was written in Spanich, I've left that answer, but translated it as well for those who are interested.
Hey que paso!!!
Hey Whats Up!!!
Yo tambien tenia esta pregunta.
I also had this question.
En esta pagina puedes encontrar la respuesta a todas las dudas.
You can find all of the answers on this page.
LAist Article from 2010:
http://laist.com/2010/07/05/how_to_park_on_fourth_of_july_obser.php
LADot Reference from 2008:
http://www.ladot.lacity.org/pdf/PDF135.pdf
FYI: Rules for Parking in Yellow Loading Zones, the secret to LA Parking you wish you knew!
http://laist.com/2007/06/24/its_one_of_the.php
This is interesting, was included in the original response, but not a direct answer to the question:
AND There's an expose on the LADOT on YouTube - FALL SWEEPS: A Street Sweeping and Parking Enforcement Investigation
http://www.youtube.com/watch?v=2O6rdy7XuoA
The video basically goes into that LA collects most of the parking ticket money on street cleaning days (About $15,000 AN HOUR) but not all of the streets actually get cleaned during that time.
Lowe's stores are closed on two major holidays each year. These holidays are Christmas Day and Thanksgiving Day, and are considered fixed holidays for employees.
Canada Post is closed on federal holidays and other days which have been defined by the Postal Employees' Union as holidays. This means that the Post Office can be closed on days which are not holidays (the Monday after Easter, for example), and open on days which are provincial holidays.
I think it depends because like on some holidays the hours are shorter but still open. Depends which holidays like christmas i bet that is closed.
Mygrant glass closed today
Law enforcement is NEVER closed.
Wachovia observes the same holidays as the Federal Reserve.
Easter, Thanksgiving, and Christmas.
Just Christmas.
On holidays like winter holidays Tilies is closed,but on holidays like Easter or Halloween it is open 10am - 8pm.
You can find information about US holidays and which businesses will be closed on these holidays on the Wikipedia page called "Public Holidays in the United States". The page has a table organizing the data by date order.
Some holidays in the United States when businesses are closed are most federal holidays such as Christmas, Veterans Day, Memorial Day and the Fourth of July. Other holidays when businesses are closed are Presidents' Day and Columbus Day.
Bank holidays are the days that the banks are closed. Bank holidays are Christmas, Thanksgiving, President's Day, and Independence Day.