I use one of those, great minds!
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I have used all sorts over the years.
Metal boxes that end up with lids/flaps that don't close because of all the nonsense that ends up thrown in at the end of the day when time to run away comes. They weigh a tonne too. They also have a habit of smashing into your knees as you walk because they're so heavy you can't walk straight, or at least not upright.
Bags that end up with busted bottoms because they get thrown onto concrete floors too many times and then allow all your little keys and screwdrivers get lost.
Open boxes with hard bases (for throwing onto concrete floors) that end up full so you can't see the little keys and screwdrivers in the bottom.
At the moment I have a 'roll' which is OK for everyday go to tools but it's not perfect as you still need your big tool box as a backup.
I was looking for a Bass (if anyone remembers them), but they always seem to be out of stock.
Bucket ends up being used a lot, especially on jobs like rad valve changes, you can carry tools from rad to rad and throw the old wet valves in as you make your way round.
There's my input!
Still looking for the best idea myself after thirty odd years. Let me know if you find it.