Warning: These tips are for the most unapproved wands out there. Use at your own risk, but don't come crying to us when your wand chooses the wrong spell.
Regularly dust your wand with a soft-bristled brush to prevent the buildup of dark magic particles. Don't use a feather duster, it'll just attract more dark magic.
Dusting for Dark MagicApply a thin layer of pure, unsweetened honey to the wand tip to prevent drying out. Don't use that fancy-schmancy stuff from the market, we don't pay those prices.
Oiling for Dryness
Remember, a clean wand is a happy wand. A happy wand is a wand that won't turn on you and try to kill you. Priorities, people!
Defensive Magic for Your Safety