The upper and lower joints must fit into the case in the accurate course to ensure that it to shut correctly, and the case should never be forced shut like an overstuffed suitcase. If the pieces are of their proper positions, the case should close securely but easily. The mouthpiece can be placed in the case with the ligature on it, after which the mouthpiece cap could be placed over both, with care being taken not to nick or crack the facing of the mouthpiece by hitting it with the cap. I prefer plastic caps for this reason. It is best to take the reed off the mouthpiece before storing it. Reeds left to dry on the mouthpiece can warp, with the intention to cause them to play badly in little or no time. However, reeds left floating in the case will most definitely be damaged as well. To give protection to reeds, store them in a reed guard of some kind that will keep them flat. Wet reeds kept in the paper cases or boxes wherein they were sold won't stay in good gambling shape, as they usually are not in a position to dry in a flat position. A good reed case will be made up of a hard fabric plastic or with a pitcher plate, will give protection to the end of the reed and could keep the reed held securely on a dry, flat surface. The clarinet may be kept free of dirt and dirt by dusting under the keys with a soft brush on a typical basis.