Hi Katherine
Yup. I have gone through it. Let me share mine wif u:
First, I got the hair combing stuff from the GDL shop. The shop auntie advised us on the combing steps (Like yi shu, shu dao wei, er shu, shu dao etc...). The combing items mus be all new, never use b4.
Before that I got my god mum to choose an auspicious time for the session by checking the tong shu. Mine was done the nite b4, (some I heard do it b4 they put on their bridal veil).
On the hair combing session, my godmum ( the person who do the hair combing for u must be someone who is still married.) prepared the combing items - comb, mirror, red thread, ruler, all items placed in a mug of rice. 3 bowls of tang yuan wif 9 tang yuan in each bowl to be placed at our 3 ancestors tablets. Then made me sit in a chair in facing the ancestors, lighted the dragon & phoenix candle and start the session when the auspicious time is up.
Most important note to take note: The hair combing session mus be done on both sides (bride & groom). Cannot be only one-sided do the session only, & not the other party. The time mus be also the same. So u n hubby mus synchronize the timing, and comb at the same time.