Jacques, do you see the star next to the acorn and thumbs up at the bottom right of each post? If you click on that star, it will change color. Then go to your info/profile page, it will tell you the number of starred pages you have and it will list them, if you click on them. Then, to make it easier on yourself, at the right side, next to the delete symbol, click on that and add whatever makes it easier for you to find that page again.
I would recommend this practice for all if you come across something that you really wish to be able to recall down the road. All of the new Phalaenopsis growers - there are many threads here on our forum dealing exactly with "how tos" on that particular Orchid, with lots of contributions from our tireless and helpful Orchid forum members here, see Elaine, Jim, Ken and so many, many others.