Hi, I make a batch every 1-2weeks. I use alot because I have long hair. I don't use any special containers, I just waited until I finished a bottle of my conditioner, cleaned it out well and then filled it with fsg. Its a 12oz bottle so its the perfect size. I keep it in the fridge and every morning I take it to the bathroom with me, use what I need, then put it back in the fridge for the next day.
If you want to separate it into smaller portions, you can get a pack of the travel size bottles at Target or walgreens or even at a dollar store.