Well here's what I did the other day. I made a simple video of myself doing a squat & toe squat combo, just so I could demonstrate a couple of the things I do. It was loaded to my personal site and not the Health Whacko. First off I place a 25 lb weight on the floor so I know exactly where to put my feet each time and then I have the step up for the toe squats. Doing complicated bi-sets like this not only balances out my muscles (physically speaking your calves should be able to do the same weight your thighs can and most people are too afraid to test that) but it also saves time between separating sets and re-racking weights. Trust me, give bi-sets, tri-sets and giant sets a try, they will make working out more streamlined.
Smith Machine Squats & Toe Squats Bi Set