Isaac and I have been working on fetching juice for seven days now.
At this point, I can stand slightly inside my living room and give Isaac the command "juice" and point in the direction of the fridge and he runs to the fridge and opens it. I don't have to give the command to open the fridge first, although I still give him that command at other times, because I want him to remember it, too. Sometimes he immediately goes for the juice box after opening the fridge, other times he starts to come back to me and I have to remind him by giving the command "juice" again.
I tried standing further inside the living room, out of direct sight of the fridge, but then Isaac seemed confused about what I was asking for. He headed for the kitchen but instead of opening the fridge, started to turn on the kitchen light. Like I've said previously, I don't know why he has trouble with a task the further away I am from where he needs to go to complete the task, but he had similar issues with turning on the lights and retrieving my meds. I dealt with that by gradually moving further and further away and now he can get my meds no matter what room I am in when I give the command.
I think I said, when I started teaching Isaac the task of fetching juice, that I thought it would take about two weeks to get it down well. I think we are on track to accomplish that.