Don’t make so much noise in using the combination pedals. Such a racket does not add to the beauty of the music, even if it seems to indicate its “immense difficulty.”
Don’t keep the right foot on the swell-pedal all the time. It is not fair to make one foot do all the pedaling, besides, you unconsciously make a crescendo when not desired.
Don’t change the combination which you are using just before the end of a phrase. Wait till the end.
Don’t be afraid to use the oboe (if you have a good one). It combines well with most any foundation-stop.
Don’t take the hands off the keys at the end of a composition which ends with the full organ or any loud combination à la arpeggio, commencing with the upper note and ending with the pedal. It may be inoffensive with a soft combination, but it sounds slovenly with a loud combination.
Don’t forget to turn the water off the motor Sunday. It is expensive.
Don’t grumble because the pastor announces different hymns on Sunday from the ones selected and sent to you on Saturday. Even the weather clerk has to change his mind.
Don’t commence every soft piece with the st. diapason and salicional (or viola). The st. diapason alone, with violin, or with flute 4 ft., the salicional and violin are but a few of the combinations which sound well.