I have just come across Fr Zuhlsdorf's posting on the Holy Oils with some sensible suggestions to avoid confusion and giving explanations. He recommended that the three bottles should be labelled in Latin to avoid confusion as to what the abbreviations mean:

The oils are actually:
SC = Sacrum Chrisma = Sacred Chrism
OC = Oleum Catechumenorum = Oil of the Catechumens
OI = Oleum Infirmorum = Oil of the Infirm/Sick

I use coloured ribbons, as self-adhesive labels come off very easily if oil gets onto them:

• White for the Holy Chrism
• Violet for the Oil of the Sick
• Green for the Oil of the Catechumens

The Oils are usually kept in an aumbry in the baptistery of the church. I keep mine in the sacristy.

Related posts:

1. Practical Problems Revisited
2. A Criticism of the Pius XII Holy Week Ceremonies
3. The Holy Father's Holy Week
4. A Southern Chrism
5. Text of the TAC Petition to the Holy See