Most dart part is replicable like shafts, flights, soft tips etc, so darts maintenance is not that important. Soft tips often bend, but it is impossible to bend them back manually, so you had better to replace them frequently. Steel darts points usually don’t bend, but it can happen in some cases, if the points do get blunt, you can use a dart sharpener like grinding paper, simply buy a piece of fine grinding paper and lay it flat on a table, roll the points over the it.

Keep your dart safe with a case or a dart wallet when you not use them, there is a lot of different cases to choose from.