02. Don’t say: “Can I get you to do something really quick?”

Why? Are you sure it will be quick? Do you know what’s involved? Your designer is more than likely happy to accommodate an extra task or an adjustment here and there, but will definitely appreciate your consideration in asking how much time it will take (rather than if you just assume it’s a quick fix). Designers are good at giving estimates and will let you know how much time they need if you ask.