Pellet tins with slip-on lids are a pet peeve of mine and the only tins I've ever spilled pellets everywhere from.
So I saved some empty tins with screw-on lids and used a hair dryer to heat, remove and transfer paper labels from frequently used tins with slip-on lids. When I open another tin with a slip-on lid I dump the pellets into the appropriately labeled tin with a screw-on lid and toss the other.
When labels are printed directly on the metal and cannot be transferred I use masking tape on the screw-on lid and record the information with a pen.
So I saved some empty tins with screw-on lids and used a hair dryer to heat, remove and transfer paper labels from frequently used tins with slip-on lids. When I open another tin with a slip-on lid I dump the pellets into the appropriately labeled tin with a screw-on lid and toss the other.
When labels are printed directly on the metal and cannot be transferred I use masking tape on the screw-on lid and record the information with a pen.