Small
As a bucket
Tool carrier
Pourer
Cable tidy
Storing plumbing accessories
Water scoop
Pouring jointing sand
Paint kettle/mixer
Catching leaks under sinks etc
Easy to fill rubble sacks with

Medium
Sweeping up into
Mortar bucket
Storing tools in the van or car
Scooper
Clear rubble in confined spaces
Welly wash
Tool wash
Plumbers bucket
Wallpaper paste bucket
Car or van wash bucket

Large
Standing water container
Dipping bricks on hot days
Rockery stone carrier
Mixing compost
Store/carry scaffold knuckles

Large Shallow
Mixing cement/plaster
Builders spot
Washing tools off
Floor screed spot
Great for floor tile adhesive
Store coils of cable and wire

Extra Large
Carrying rubble
Trimmings collector
Mulch spreader
Recycling tub
Taking rubbish to the tip
Mixing large batches of plaster