I'm due to have dc2 when dd1 is 16 months. I hate the thought of 2 lots of nappies and would like to early potty train. My MIL always says hers where all potty trained by 18 months and dm says I was potty trained at 22 months (although it was 30 years ago they might not be remembering it correctly).
Anyone recommend any particular techniques or books etc?