A friend gave me a coiba for my birthday.
I lighted it, took about 6 puffs, let it go out, blew through it to expell the smoke, sealed it in a zip lock bag.
Every 2 months or so, I’d take it out, light it and savor a few more puffs, then repeat the procedure.
That Cuban cigar lasted me until my next birthday, and the last puffs tasted as good and fresh as the first puffs.
This was in Florida, so I had plenty of humidity to keep it from drying out.