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.
Oily taste in mouth can be due to either eating oily and spicy food, it can be due to gastrointestinal reflux, or improper functioning of the liver. The other causes may include improper oral hygiene, bad dentures, drinking alcohol, smoking tobacco, thick coating on the tongue. Correcting these minor causes can decrease bad taste in the mouth.