Is the guilty pleasure here one that you feel the satisfaction/enjoyment/reward is one that your younger self would disdain?
It's okay to evolve your thinking on this. Some of my younger ideas were conclusively proven wrong, payed for by the consequences of my actions and all that. Younger me clearly got a few things wrong, I feel like I need to re-examine my preconceptions often.
Young Me, a voracious reader, was defeated several times by the LOTR books. To this day, I doubt I could force myself to read dozens of pages of Tom Bombadil singing about trees.
Also Neil Stephenson, come to think of it. I believe that I've absorbed enough of Snow Crash and Diamond Age via nerd culture to provide summaries of both but oof, I couldn't finish either of them.
If you count by threes, the ones place is unique until you pass each multiple of 30 - 3, 6, 9, _8, _1, _4, where was I? I hadn’t made it to 30, ends with a 4, must be 24. 27, 30, 33, _6…
Serves as a sort of checksum, as long as you know roughly how many you have and just the last digit.