Good Design is Imperfect Design, Part 1: Honest Names
Also<p>```
.plus(1 month)
```<p>The unknown behavior of 1-30 + 1 month is a red flag that maybe you shouldn't be using "month" as a unit of time because it isn't.<p>Months suck. Bill for services every 10 days or every 25 days or every 50 days instead of every month.