Although I occasionally make my own curry paste, I have tubs (you can buy cans or tubs; the tubs are much more economical) of all sorts of curry pastes -- masaman, red, green, yellow, panang -- in the pantry at all times. I use the tubs too and was told by a Thai freind once that not too many people make their own curries anymore unless it is a special occasion. I have made my own a couple of times. The first time making the mistake of lifting the lid off the blender full of chilies, garlic etc and putting my nose right into it. It burned for days! Best coconut milk is Mae Ploy, fish sauce is Tiparos, I also use the Mae Ploy curry pastes. I am luck enough to live in a place with a lot of Asian markets. My favorite is the storeowner who grows Thai sweet basil year round in her green house.