Using more fertilizer or pesticide than the label calls for wastes the product and doesn't help the lawn. The extra fertilizer or pesticide will probably wash away into a storm drain and out to a nearby wetland, stream, or pond where it can harm aquatic plants and animals.
Wait until the ground has begun to freeze before mulching bulb beds. Mulching earlier will encourage bulb-munching rodents like mice and voles to nest there. A 3- to 4-inch layer of mulch will help prevent freeze-thaw cycles that can heave bulbs out of the ground; however, mulching is not absolutely necessary except in coldest areas.