Why does the Torah see fit to inform us that Lavan blessed his grandsons and daughters?
Seforno: Chazal said (Megilah 15a) "do not take the B'rachah of a Hedyot 1 (an ordinary person) lightly." The B'rachah of a father, who blesses with all his heart 2 is even more potent and is bound to materialize.
Why does the Torah record that Lavan returned to his place?
Tosfos ha'Shalem (2): He returned to his poverty. The night that he pursued Yakov, robbers took everything of Lavan.