Beginner novice is so much like rally novice you won't find it hard. I am always doing multiple events in single days now. Over Thanksgiving weekend I did RAE, open A obedience and agility three days in a row. That was too much. In the future I will keep days as either obedience or agility.
When you are in rally and obedience you just make sure you talk to the stewards and/or the judge for the rings you are in to let them know you may have conflicts. They want you to succeed and will generally be very helpful. I have never missed a ring because of conflicts.
Lily AKC: CGC CD HIT CDX RN RA RE RAE NAJ; APDT: RL-1; CPE: CL1-R, CL1-H
Peeves AKC: CGC BN