MPS Tip Cleaner
This tip cleaner is the most recommended for cleaning soldering tips.
Made of brass it won't accelerate corrosion on the soldering tips like a wet sponge do or a similar cleaner made of steel.
Using it by dipping and/or rotating the tip inside between each solders prevent the oxidation and burned rosin buildup. It gives you the best thermal transfer and a wetting action of the solders. This result in a higher quality solders with a nicer look.
It comes in a handy and reclosable can to avoid spillage in transports of burned residus of rosin and soldering waste from the soldering tip. No mess in the pit bag!