I do full body, 2x times a week. I've been considering splitting it up if I add a session per week, but we'll see if I can manage that.

The Nautilus Circuit machines at our gym all have the MAIN weight stack, and then a little 1-9lb stack (in 1-lb increments) along side. We also have a stack of rubber-coated 2 or 3-lb weights you can just stack on top. The only downside is on the machines where the weights start going up by 15-lb increments on the main stack, it can sometimes be impossible to actually get a 2lb increment, so I'll just bite the bullet and try going up by 3 or 5.