Main: Currency/eccy key(s)/my holy sandal collection
First tab: PVP/PVM/slayer
Second tab: Utility outfits (graceful, pryo, prospector, etc.)/Clue scroll items/fashionscape
Third tab: Teleports/jewelry
Fourth tab: Skilling/junk
I've got another tab that I put loot in but it's quite empty atm since I just cleaned it out, I keep all my totem pieces and long/curved bones in there too, also clues.