Nitrox fills

[DRE]

The big fat yellow sticker doesn't tell you anything - it's just another way for the industry to make money. Just use a piece of ducttape when you'refilling the tank. Indicate the date, your name and each gas you put in (if doing PP filling). Indicating the psi of each gas you put in will allow you to walk away from the tank and return later (if you absolutely have to) without missing a beat. Once the tank is filled you analyze the gas and write the exact content on the ducttape as well. Then you can add the MOD of the gas.
For all stage bottles you do this same thing, but you also put the MOD in three inch numbers on two sides of the tank so there is no confusion possible as to which gas you're breathing.
Can it be any simpler and cheaper than this?