I've spent a considerable amount of time learning how to hone the Domestic training regimen. Here is my advice and list of resources, to benefit the discerning domestic drudge.

Checklists

For the purpose of organization, it is paramount to keep a list of tasks that need to be done. Here is a sample from Molly Maid in PDF format. If you're a Boomer, feel free to ask a Millennial relative to save and open it for you: https://www.mollymaid.com/documents/pdfs/MLY_OUW_HouseCleaningChecklist.pdf. 

Throughout the cleaning process, it's helpful to structure cleaning from top to bottom, in an order that makes the most sense for efficacy.

Technique and Skills

When it comes to actual servitude, there are a variety of resources to behold -

Laying an American Table: https://www.youtube.com/watch?v=d9sBlLJOxNk

Carrying multiple plates: https://www.youtube.com/watch?v=iIIR2d_vIz0

"Butler" Service: https://youtu.be/faNFNmspO6Q

American Guest Service (individual, detail): https://youtu.be/IglgwMkS-IM

Tea and Coffee Service: https://www.youtube.com/watch?v=1TOwyRhqCzE

Canapes (Finger Foods): https://www.youtube.com/watch?v=jvYJLb2C7aU

Butler & Maid Services

At the end of the day, one must contribute with a net positive effect to the overall running of a household, or the domestic servant is actually more trouble than he's worth. See, Emily Post's Well-Appointed House: https://www.bartleby.com/95/12.html

Happy serving!