I've started to wire a room and bathroom in my basement and I was
hoping to get some clarification about what the code says and what is
generally good practice. I hafve already contacted my local inspector
and am hoping that the upcoming rough inspection goes smoothly.

On the inspectors recommedation, I purchased cable stackers at home
depot to avoid violating the rule that requires cables to be 1 1/4"
away from the edge of a stud. If I run two or three cables in the cable
stacker, does the cable stacker count as an "approved means" of support
as defined by the nec code? i.e. Is each cable stacker equivalent to
stapling the cable or would the cables also need to be stapled in some
way within 12in of the box?