IS SANTA CLAUS REAL? I HAVE SOME PROOF THAT HE CAN OR CANNOT BE REAL?

Every Christmas my family goes out to our aunt and uncles houses for fun christmas parties.. i am always the last one out the door.... all of our doors are locked... and when i come back there is always presents... hmm... can someone please tell me.... but then last year we stayed home and when i woke up there was presents.... again hmmm... i just really need some help