Finally caught Isaac pulling himself to standing (he had his socks on which slowed him down a little) :)
He just figured this one out a couple of days ago, but he has already taken a couple of steps hanging on to the furniture!!
Now nothing is safe. He can reach up to the third shelf in the pantry, anything on the sofa cushions is fair game, anything that he can he pulls himself up with, including someone sitting on the floor with him. At least he's not afraid to fall back on his bum when he's tired of standing or starts to lose his balance :)