I currently have all the Basic gear I need for my character and all my companions are equipped to a point that I am happy with (Yavin lockbox gear).
I don't need gear for alts since I only play 3 characters and one is for PvP. I'd rather spend them on something that I can use and/or random stuff to sell for cash. I'm not a big crafter either.
So, what can I spend my Common Data Crystals on now?