Ooh, I expected the marathon to be quite leisurely because of
the breaks.
Wallets, hmm depends what're you looking for, brand or style?
I'd recommend Takashimaya for the mid-high end labels, they have a
large variety. Can pop out to the boutiques in Ngee Ann City
too.
Otherwise, more flagship stores can be found in Paragon.
Ah, another good bag place is Tangs.