It isn't necessary to do a lot of technical repair and maintenance on your boat to be involved in keeping it reliable and well cared for. Simple corrosion spray, appropriately applied, can dramatically improve and maintain the condition of your boat. The goal here is to preserve resale value, avoid costly repairs and promote safety at sea through reliability. The best time to go over the gear on your boat is right after your service provider has worked on it. Looking the boat over at this point does two things, you can review the work that was done, and you can take the time to spray corrosion inhibitor over all your gear even in out of the way places, instead of paying a skilled technician for something so basic.
Here are some photos of gear that was not treated with corrosion spray. This can affect safety at sea, not to mention that these avoidable repairs ended up being very costly.