Have fun while cleaning your boat
Inevitably, your boat will get dirty. You might use your boat for fishing trips and at the day it ends up full of gore and beer cans. Maybe you have guests who get a little seasick. Either way, you are going to need to clean your boat. While you are at it, when is the last time you cleaned your boat thoroughly? You paid a lot of money for that boat so you might as well keep it looking pristine. There are many things you can do to keep that boat looking like new.
Many boats benefit greatly from a good wash and wax. Fiberglass isn't really as smooth as it feels and the wax helps fill in all of the tiny, microscopic holes and imperfections that you can't see with the naked eye. Before you get to that, however, you will need to give the boat a good washing. You can't use just any detergent though, check your marine shop for special detergents that aren't harmful to your boats finish and only use those. Household cleaners may remove a lot of wax and possibly interact with the fiberglass in a way that is undesirable. A good wax job will help keep your boat watertight as well as give it that right off the show room sparkles. This doesn't work well if you have a large boat because you aren't going to strap on the SCUBA gear and try to wax underwater! This is great for tailored boats or boats in storage though.
The deck of the boat needs to be cleaned on a regular basis and every nook and cranny should be wiped down. If you have a sailboat, you will need to pay extra attention to the sails, rigging, and anything that has a stitch or zipper. Stitches and zippers like to decide to fall apart at the worst possible time. Since you are on a boat, mildew and mold will show up eventually. You can use bleach water to eliminate most of this but never use bleach water on any fabric. Instead, use a mildew killer from your local marine shop. Bleach may corrode the fabric or stitching. Simple Armor All or something like it is great for seats, cushions, and any padding that might be on your boat. A quick wipe down once in a while can help prevent cracks.