"Each and Every" and "Whether or Not"

[Keith Hansen]

I'm editing material written by an author who uses the words "each and
every" repeatedly. For example: "Each and every transaction is recorded
in the log."

Is there any reason to use "each and every"? Why not one of the
following:
"Each transaction is recorded in the log."
"Every transaction is recorded in the log."

I view "each and every" as redundant:
* If EACH transaction is recorded, that implies EVERY transaction is
recorded. 
* If EVERY transaction is recorded, that implies EACH one is recorded.

Similarly, the author uses "whether or not": "This report indicates
whether or not the process was successful."

Again, why not: "This report indicates whether the process was
successful." By implication, the report either tells me "Yes, it was
successful" or "No, it was not successful."

Any opinions on either of these usages?

Thanks!

Keith