To be absolutely brutal and honest with you, nobody cares about I look forward to hearing from you.. The practical reason is that it's one of the various standard and conventionally polite ways to end the body of the letter. It's just a standard exit.
1 In some cases, liver failure causes this taste to occur. 2  Gastroesophogal reflux disease can cause the salty taste (even when no pain is present). 3  Some medicines can make everything taste odd. for example the drug enalapril, which is a drug used to prevent heart failure.
Post nasal drip. This is another common cause of tasting salt in the mouth. It happens often in the winter or when you are suffering from allergies. The bacteria in your mouth and the fluid you secrete to get rid of the bacteria will taste salty.