Consistent rules for double-slash

**Is your feature request related to a problem? Please describe.**
It's difficult to tell why some commands are `/` and others are `//`. It seems mostly arbitrary.

**Describe the solution you'd like**
A rule for when we use `/` and when we use `//` in our commands, and to align all existing commands to these rules.

A potential alternative solution is to simply use `//` always, but that might be overkill.

**Describe alternatives you've considered**
N/A

**Additional context**
N/A