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.
It is also important to note that using eye drops can cause the same effect. Eye drop solution will enter the tear ducts, which empties into the nasal cavity where it can make itÂ´s way into the mouth. Eye drops have a very salty taste, so even a small amount in the mouth will give an unpleasant salty taste.