Where can I find y2k cheap glasses?
@Sunglass Hut has them, but I am not sure if they are cheap. You could check them out.
Where can I customize my own water decal tattoos?
Not sure you can customize one in Amman, but you can always find some online @Ubuy Jordan
Where can I buy matte photo paper?
I think you will be able to find it @Sweifeh, Mkateb.com Showroom, Paris St. 23, Amman, Jordan
Where can I find a portable Bidet?
@travelkit has an online link where you can order and you will get it on the same day! Use this link (http://www.Travel-kit.net/)
Where can I find a gallon water bottle?
You can find it at any sport store like @Baraka Sports or @Go Sport . But its easier to just buy it online at www.jordan.ubuy.com
Where can I find an online store for socks and underwears?
I personally like @Socksat , check it out!
Where can I find countertop or small dishwashers that can be placed on tables?
I think you can find them @Leaders Center