Gift wrapping, packaging, and shipping are a few of the extra ingredients in my business.
I offer my clients the opportunity to receive local delivery via courrier or sometimes I am able to do it personally. I also offer nationwide shipping.
I usually know the occassion we're celebrating, if there is one, so I gift wrap appropriately for that too.
There is no extra charge for gift wrapping, this is part of my customer service. I often include the price of shipping in my initial pricing and proposal. If it's something that's decided later, it is added as an additional cost.
Gift wrapping is always included. :)