I'm running out of storage space! I should try to get a Helmer or something similar, I keep looking in Costco in case something suitable appears!
I keep my polishes in three boxes, the top of the box my tablet came in, the bottom of same box and a small box I've had a while.
On the picture above the left box holds my China Glaze, OPI, W7 and Nubar (always a mess because the round bottles don't stack neatly)
The middle box has my a-england, Barry M, Butter London, Sally Hansen and Color Clubs (they all stack in neatly as the bottles are square)
The smaller box on the right has my Nails Inc, Konad, Enchanted Polish and some other odds and sods.
I keep them by brand rather by colour, I did once sort them by colour but put them back to brand within days as I couldn't find a thing! I do occasionally sort them into colour groups to check for dupes, this is the most recent time I did it...
Hubby thought the blue pile would be biggest but it's actually the greens I have most of! The second biggest pile was purple. There weren't many dupes apart from ones I have previously compared.