Purchases for Shabbat

Hi,

During the week one should purchase special products and set them aside for Shabbat; this is a way of honoring the Shabbat all through the week.
One who purchases such an item, and then finds a better one later in the week, should purchase the better item for Shabbat. He may then use the first item during the week.

Note: With all of this purchasing, one must still stay within the bounds of what he can afford. We are taught: Make your Shabbat like a weekday, rather than need to be financially supported by others.

(Mishneh Berurah 250:2)

Have a great day,
Mordechai