Mistakes made during the Farewell tawaaf

What are the mistakes that some pilgrims makeduring the farewell tawaaf?.
Praise be to Allaah.
Shaykh Muhammad ibn 'Uthaymeen (may Allaah have mercy on him) said:"It
was proven in al-Saheehayn that Ibn 'Abbaas (may Allaah be pleased
with him) said: "The people were commanded that the lastthing they
should do in Makkah was to circumambulate the Ka'bah, but an
exceptionwas made for menstruating women." Narrated by
al-Bukhaari,1755; Muslim, 1328.
So tawaaf should be the last action of Hajj that a person does.
People make several mistakes when performing the farewell tawaaf:
-1-
Some people do not make tawaaf the last thing that they do, rather
they go down to Makkah and do the farewell tawaaf when they still have
to stone the jamaraat, then they go out to Mina and stonethe jamaraat
and then leave. This is a mistake and that does not sufficeas the
farewell tawaaf inthis case, because it is not the last thing that the
person does in Makkah, rather the last thing that he does is stoning
the jamaraat.
-2-
Some people do the farewell tawaaf and then stay in Makkah after that.
This means that their farewell tawaaf is invalidated, and they must do
another one when they are going to leave. But ifa person stays in
Makkahafter doing the farewell tawaaf in order to buy something or to
load his luggage etc, there is nothing wrong with that.
-3-
Some people, when theydo the farewell tawaaf and want to leave the
Mosque, walk backwards, saying that they do not want to turntheir
backs to the Ka'bah. This is a bid'ah (innovation) which was not done
by the Messenger of Allaah (peace and blessings of Allaah be upon him)
or by any of his companions. The Messenger of Allaah (peace and
blessings of Allaah be upon him) venerated Allaah and HisHouse and if
this were indeed an act of veneration towards Allaah and His House,
theProphet (peace and blessings of Allaah be upon him) would have done
it. The Sunnah is, when a person has completed the farewell tawaaf, to
leave the Mosque walking forwards, even if he turns his back towards
the Ka'bah in this situation.
-4-
Some people, after doing the farewell tawaaf, stop at the door when
leaving the mosque and turn to face the Ka'bah, as if bidding farewell
to it, and they make du'aa' or say salaams and so on. This is also a
kind of bid'ah, because the Prophet (peace and blessings of Allaah be
upon him) did not do that. If it were something good the Prophet
(peace and blessings of Allaah be upon him) would have done it.
From Daleel al-Akhta' allati yaqa' fiha al-Haaj wa'l-Mu'tamir
(Mistakes made by pilgrims performing Hajj and 'Umrah).