Camera cleaning kit
If you only have one lens then you shouldn’t have problems with dust on the sensor, but you still should bring a small cleaning kit for the lens. A blower brush and a washable microfibre cloth should be enough to get rid of dust and any fingerprints on the lens glass. If you do get any dust on the sensor, the first step is your Nikon’s built-in sensor cleaning function. If that doesn’t work, take the lens off the camera, take a shot on Bulb and use a manual blower to gently blow on the sensor. Never use compressed air, and remember that any dust that you see through the viewfinder won’t show up on the pictures.