they wont draw current as they are also switched by the ignition but it doesnt do the starting process any favours having them draw at the worst possible moment (starting). you can get away with it yes. but in a cold start it is very important not to switch everything on before start or straight away. The alternator can only supply so much current at ccertain revs and the COLD battery must take up the slack, killing it pretty quick.
I had my first snog and first feel of breasts in rollerworld derby - jenny langdale was her name, oh the memories
Happy bday by the way.
i laughed alot at that mate hahahahaha