If you're meaning how long should you wait after getting a fresh piercing? Usually 6+ months. If you're saying how long should you wait after each stretch, atleast a month, and after that let your ears deceide. If a taper does not slide through with ease wait a few more weeks and give it another go.
And for organization, these are amazing.
http://www.omericaorganic.com/merchandi ... 0POUCH.php
But if you are still at 6g I suggest using something like a small case.
(Hardware stores have them, ones made for washers, nuts, screws, bolts, ect.)