When it is possible, take photographs during the golden hours. This is early in the morning and late in the evening just before sunset. Your objects will have a warm light cast on them during the golden hours and their shadows will be longer. This makes your photos more appealing. Obviously, consider the weather conditions as well. The worst time to shoot photographs is mid-day when the harsh glare of the sun leads to ugly photos. When discussing with your clients, advise them on the best time to get high quality photographs. You could be asking, but what about an event that occurs the whole day? Well, here your creativity should come into play.