Personal blog on early retirement, selling tradelines, and analytics projects. I write about what I learn as I am learning it.
I sold my last tradeline on October 29, 2025. A $139 order, one card, nothing remarkable about it. I didn’t know at the time that it was the last one — you never do.
The store has been sitting there ever since, quietly taking orders that don’t go through. So I’m closing it. Not the blog, not the posts — just the store. Here’s the whole reasoning, numbers included, because in all the time I’ve spent reading about this business I have never once seen anybody publish theirs.
Planificar bien un día de entregas puede ser la diferencia entre terminar a las 2 de la tarde o a las 6 — con la misma camioneta y los mismos pedidos. Llevo más de veinte años construyendo modelos de optimización para flotas de reparto y distribución, y en esta guía te explico cómo planificar rutas de reparto paso a paso: qué datos necesitas, en qué orden hacerlo, y las restricciones que casi todos ignoran hasta que el chofer llama diciendo que no llegó a tiempo.
Continue reading “Cómo planificar rutas de reparto: guía paso a paso”A rotating shift schedule is one where employees cycle through different shifts over time — a week of mornings, then a stretch of evenings, then a run of nights — instead of being locked to the same block every day. If your operation has to be staffed around the clock but you don’t want the same handful of people permanently stuck on nights, some form of rotation is usually how you spread that burden. This post is the plain-English version: what the term means, the two directions a rotation can turn, how fast it should turn, and where the well-known named patterns fit in.
I’ve built scheduling models for manufacturing plants and 24/7 operations for a couple of decades, and rotation is one of those topics where the folklore and the research don’t always line up. So I’ll keep the claims modest and point you at the source material where it matters.
If you work in law enforcement, fire, EMS, or a 24/7 control room, you’ve probably heard your rotation called a Pitman schedule — even if nobody could tell you exactly why it’s called that. A pitman schedule is a 12-hour, two-week rotating shift pattern built to keep an operation staffed around the clock while giving each person a predictable rhythm: never more than three shifts in a row, and every other weekend off. Mechanically, it overlaps heavily with what a lot of people call the 2-2-3 schedule (a sibling post on this site walks through those mechanics in more general terms) — but the Pitman name carries its own history and shows up overwhelmingly in public-safety and industrial shift work specifically. Below I’ll cover where the name is said to come from, how the rotation lays out day by day, why it fits work that can never go dark, and how to build one for your own team for free.
A retail floor runs three different jobs at once during the busy stretch of the day — someone helping customers, someone on the register, and, early that morning before the doors even opened, someone unloading the truck. Miss the receiving window and the sales floor is short all day; overstaff the slow morning hours and you’re paying for nothing.
