I'm dreaming of a white Christmas

That's one of the ways proposed for terraforming Venus. Put in a sun shield to freeze the planet, let the CO2 snow down, then process the CO2 into something that can sequester it away so it doesn't just go back into the atmosphere after removing the sun shield.

Of course none of that is technically possible right now, but it's a lot easier on a planet that has no (known) life to destroy while working through the process.

mmm, delicious carbonjack

Dry snow doesn't sound like too bad of a proposition on its own.