You don't need extra feet, heels, toes, e-brakes, or anything else. As said, the key is practice. For starters (pun intended) find a place to be so you can (safely) stop uphill. With your right foot firmly on the brake, clutch in and put the vehicle in first. Slowly and gently start letting the clutch out. You will feel the threshhold point where the clutch begins to engage. The revs will start to go daown and the car will feel like it wants too begin to move. Bury the pedal again. Now repeat the above several times until you know the feeling well, and you know exactly at what point the clutch begins to engage. To actually begin moving, this time let off the brake when you hit that threshold. Feed 'er a little fuel and ease off the clutch the rest of the way. Smooth as silk. Do this a bunch of times. With enough practice, you'll be quick enough that you no longer need that overlap between the brake and clutch.
Quick anecdote. Once, about 20 years ago, I was driving my '76 Celica GT home from my parents' place. Getting into a major intersection and waiting to make a left, I clutched in and my foot dropped to the floor. It was a hydraulic clutch and I lost ALL pressure. I drove a couple miles on city streets, a good stretch of freeway, and some more city streets to get home- all with no functioning clutch including stops and starts. That folks, was an interesting challenge...