1. I'm pointed and jagged yet soft and breakable. Sometimes I disappear within instants, but in other places I stay all year round. What am I?
2. I'm between yesterday and tomorrow, but can be found anywhere, depending on what people see. What am I?
3. You see at least one of me every 24 hours, but in some places I am easier to perceive. Day and night, I always see you, seeming close, but in actuality my kind are always far away. You place a version of me in your home every Christmas as a final topping. What am I?