I know that the week which begins today, Pentecost Sunday, ought to be the Octave of Pentecost. But ... for a moment ... I make a proposal about the Real (postconciliar) World.
The New Office invented, for the Octave of Christmass, the idea of celebrating a Saint at Morning Prayer etc; but of keeping the Octave at Vespers. Taking a leaf out of this book, next week those of you who possesss preconciliar breviaries could use your postconciliar books for Mass, Morning Prayer etc.; but for Vespers say the Vespers of the Octave from your Breviary. It is of course permitted to do this chopping-and-changing by the decree authorising the Liturgia Horarum.
This expedient would to a degree preserve the Octave while enabling you to share some commonality with the Novus Ordo Church - which will be celebrating some rather dishy Saints this week, including S Philip, S Augustine, S Bede ...
BTW, I suspect that the Oratories will, on Tuesday infra Octavam, be having Old Rite First Vespers ... but of S Philip. Is this strictly licit?