Quick Consumption MoodletDrinks take 4 sips to finish. The final sip grants the moodlet. So you can, during your free time, make your sim take 3 sips out of the drink then cancel and keep the drinks, and only make them drink the final sip right before work or when you need the moodlet it grants. You can do the same for food.
Especially after parties you will collect a large amount of half drank/eaten drinks/food from those attention deficit guests. Kinda gross, but the sims they dont care.
Also useful when you are trying to keep your sims from gaining weight.
Fast DrinkingThis is a tips shared by billythegreat if not mistaken, I think it is a great tip so here goes. When unmanaged, it takes a sim hour for the sim to finish the drinking. After the sim takes the first sip from the cup, queue up several view object actions. While the sim is viewing, slowly cancel the view actions, the sim should take the next sip sooner. With your micromanagement, it takes only 20~30 sim minutes to finish a cup of drinks.
I really love this trick and use it quite often myself.