I don't actually believe in feng shui but I am keen to read about it. I used to surf the net regarding it by Lilian Too and Joey Yap.
Well, one interesting fact was about the toilet. Toilet shouldn't be above the main door. Otherwise, all the luck would be flushed away.
So, when my family shifted to our new double-storey terrace house in 2000, I realised that the master's bedroom toilet was just above the main door.
Since I was a little influenced by feng shui, I decided to use the sliding door instead as our main entrance. The main door is kept closed till now.
I had been to several show houses and the first thing I liked to check was the main door. Some had good feng shui whereas some were ignorant.
Anyway, don't be overly-influenced by feng shui.