Vegvisir ("the viking compass"). It is said that if this sign is carried, one will never lose one's way in storms or bad weather, even when the way is not known. It is encircled by protection runes. This would be a cool tattoo.
Vegvisir for guidance Ungiz for perseverance surrounding runes: "not all who wander are lost." Valknut for strength. Huginn and muginn for wisdom. Yggdrasil for balance. Jerah and dagaz for decision making.