I'm the same, the novelty quickly wore off. Just seems a bit silly to me. I think i must be an old codger stuck in a youths body.
Leave 420 to the little school kids and just enjoy life whenever you fancy Maybe if i had been at school and participated in the whole original 420 thing i might hold on from some for of sentiment, but it means nothing to me.
I am always working at 4:20. I think the 612 rule is more appropriate nowadays. 6am before work, 12pm at lunch, 6pm after work, 12am before bed. I skip the first 2 because I don't puff at work, too dangerous.
I use 4:20 as an excuse to smoke another bowl. If I see it's like 4:10 and I have a bowl packed, I finish it quick like and pack another to spark at 4:20. Although more often than not, I get too stoned from finishing the first bowl and forget about the second.