DS is 2.5 but decided he wanted to use the potty like his big DB. He's been great up until recently and now he just wees in his pants ALL THE TIME! It's not every wee and he never poos himself (except the time he was poorly bless him) but it's like we're going backwards. 
Oh & he can't get a Pull Up down quick enough so they're a waste of time except for bedtime.
Thank goodness the weather's nice - there's so much washing 