Just wondering... as DS is 2.9yo and I'm not sure he's quite getting it all yet. He's started getting excited at all the "sparklies" as people start putting their lights up, and definitely remembers them from last year as they used to be our main conversation on out drive home from work/nursery and even last month he still said "no sparklies there anymore" in houses that used to have elaborate displays, but I'm not sure my explanations of santa are getting through yet, would love to hear how you explained it all and when your DCs started to understand?