I only bring one set – d4, d6, d8, d10/%, d12, and a d20. I like to wear a t-shirt with a pocket on the breast so I can keep the dice I’m not using regularly off the table. If I’m regularly needing more, like 2d6 for a greatsword-wielding fighter, or 5d4 for a magic missile throwing sorcerer, I’ll bring some extra. But I don’t have the need to have a ton of dice on the table in front of me.
Every game I’ve ever played in could save at least 10% of the space on the game table if Players limited their dice to what they actually need at hand. Hell, take off the snacks and drinks and supplemental books, and you could double the size of the battlegrid. Gamers who bring way too many dice to the table are silly (and sometimes inconsiderate of others whose space they're wasting).
Quasqueton