When placing objects that "snap" to the grid, you can hold [color=#a4885c]shift[/color] to place an entire line at a time, and [color=#a4885c]ctrl[/color] to place an entire square at a time.
When crafting objects with a lot of ingredients, keep in mind you don't have to hold everything at once, you can simply place the ingredients on the floor or on a table near you and they'll be used up during crafting like normal.
