everyones busy,can always find a spare bit of time to buy a timer,and hey its more accurate than stumblin out of bed or home at night flickin the switch cause your too stoned to remember when they were on or off!! like the people say a few bucks will ease your stress of light schedules and ease the stress on your plants,"there" supposed to believe there growin outdoors in there natural invoroment so light times are essential to get correct,you dont want your plants droppin there bollox on you!