Labor Day is one of the few holidays I can think of where you celebrate something by not doing it.
Rancho Murieta Online has a few suggestions on things to do on this upcoming Labor Day weekend, in case you were becoming overwhelmed with all the options for the holiday.
In case you would like to spend Labor Day by walking down streets and randomly explaining the history of Labor Day to passers by, check out the Department of Labor website on this very topic. If you could do this in a mailman’s uniform sitting at a bar, you’d be my hero. Cheers.