Felting - nothing kinky ...

[Cat Jones]

.. just getting my knitting in a twist

I'm knitting up some yarn to make a bag, so far so ridiculously easy; rather than have to line said bag I'm going to 'felt' it in a washing machine. Now google is my friend and I've looked up various sites about this but I still have a question - in your experience, is it better to felt the whole bag or to felt the individual pieces and sew it up afterwards ? Relying on the blocking/drying to make sure things fit together ? Is there any risk that the two sides of the bag will stick together ?

For info - the bag is really simple and "slim", two knitted squares to be sewn together along three sides. I've yet to decide if I'm going to put in a 'floor' even.

Thanks for taking pity on such a novice