It is believed that one must buy gold on Dhanteras but that does not mean you can buy fake gold.
Some people believe its auspicious to buy steel on Dhanteras but actually you must avoid buying it on this day.
Of course the vessels that you buy will be empty but before entering the house make sure you fill the vessel with food or water.
You should avoid buying plastic on Dhanteras because it tends to bring bad luck.
It is considered inauspicious to buy iron on Dhanteras.
It is believed that buying sharp objects like scissors, knifes, etc. on this day can bring bad luck.
Glass objects are said to be related to Rahu and hence buying them on Dhanteras is known to be inauspicious.
Make sure you buy ghee well in advance and not on Dhanteras.
How is Dhanteras celebrated at your place?