Diff and CTS on rolls, Primary red was a roll; the rest are just the small cuts you buy. Oh Cyan was a roll as well as it was originally for 8' tubes.
II have a whole ton of other cuts accumulated through the years (and just threw out 4 trashbags worth!)
I'd also recommend a roll of ND.9 Rarely do I use it; but when I use it; it's wholly necessary.
Also most times Production will buy the gels we use; but it's nice to have your own just incase and for whenever you work smaller things.
Some people charge prod to use their gels, I tend not to, within reason.