Sunday lunch for example:
Lift plate1, peas, carrots spuds, meat etc
Lift plate2, peas, carrots spuds, meat etc
Takes ages.
When I do it (majority of time):
Lift carrots - plate 1, plate 2, plate 3, plate 4, plate 5
Lift peas - plate 1, plate 2, plate 3, plate 4, plate 5
Seems much much faster and food is hotter when it arrives on table.