My MIL tells me that you can make everything which requires flour (including pastry, white sauce, etc) with self raising flour, and that there is no point having plain flour in the cupboard at all.
She says the only people who still use plain flour use it because they are romantics nostalgic for bygone days.
I am not too sure about this. I have plain flour and add baking powder when necessary, firstly because I live in Spain where self raising is hard to come by and secondly because my kitchen is quite small and I don't want to use up all the cupboard space with 2 types of flour.
Opinions please!