When a fixer casts fgrid (Hack Grid Data Stream (Team)) then the well known item Data Receptacle is spawned in every teammembers inventory. This item can be used to enter fgrid. Pick up the item and richt-click it on a grid terminal.
The fixer himself gets a permanent item called Quiescent Grid Waveform Template. This item remains, most fixers have put this somewhere deep in their bank.
This is the item we will now use:
Combine Quiescent Grid Waveform Template with Empty Data Receptacle Container, and the result is a Full Data Receptacle Container.
The Full Data Receptacle Container can be put in a backpack somewhere for when there is no fixer around.
Should this situation arise, then you can whip out your Full Data Receptacle Container and "use" it. Result is that the Full Data Receptacle Container changes back into a Empty Data Receptacle Container AND you have a Data Receptacle in your inventory ready to be used to enter fgrid. Not a fixer around at that time

When after that you meet your friendly neighborhood fixer all you need is ask him to recharge your Empty Data Receptacle Container and you have a new ready for use fgrid charge.