In DeMolay, there are several ways to commit a double letter foul. For instance, if you are wearing your Chevalier cords, then you shouldn't also be wearing a Chevalier pin. Likewise, if you are wearing a Blue Honor Key, you shouldn't also wear your Founder's Membership Award. By displaying former, we already know that you have earned the latter.
I often see this happen with the multiple wearing of lapel pins and honors. Remember the old rule - one of each! You should wear no more than one honor or award around your neck, on your lapel, on your pocket, and on your hand. Also, as much as possible, they should all be for different things.
As an example, the wearing of an RD Medallion, a PMC Jewel, a Number One pin, and a Chevalier Ring is a perfect way to show that you have earned many awards and honors in DeMolay without going overboard. However, wearing your RD Medallion, Chevalier Cords, PMC Jewel, PMC-MSA, RD Lapel Pin, Chevalier Tie Tack, and Chevalier Ring is extreme and very overboard.
Whenever you are representing DeMolay in public, remember to wear only one DeMolay piece of clothing at a time. If you are wearing that awesome new shirt your Chapter just had created, you don't also need DeMolay shorts and a DeMolay hat. People will notice your shirt and ask you about it. They won't be any more inclined to ask you if you wear three more additional versions of the same logo. If they are interested, they'll ask. If not, they won't.
This issue isn't just limited to DeMolay! I see members of the Masonic Fraternity double lettering all of the time! More people than you may realize notice choices such as these and make judgments about the wearer without even knowing. It's always better to be safe and wear your affiliation in moderation. Be proud of what you have earned, but don't overdo it!
Frat! ~ "Dad" Seth Anthony