Organizing sand paper 150mm - #497690 systainer opinions?

[mkasdin]

what is the best approach to keeping the sandpaper in one place. Keep them in the bulk 50 sheet boxes and stick them in a box, make a divider with wood or use a systainer like the link below.https://www.festoolproducts.com/Festool-497690-Systainer-SYS-STF-D150-T-Loc-Repla-p/497690.htm

 

[Master Carpenter]

I use the systainer. I bought it at lee valley tools loaded with an assortment of grits. Because I do a lot of site based work, I can grab the sander and sandpaper together and load it in the truck. In the shop I keep the sandpaper in the 50 pack boxes on a shelf and use those to reload the systainer when it runs out of a grit.

Which reminds me I need to pick up a box of 120 on the way home today....