Sometimes the person you admire or love has a passion or hobby that they would really love to get stuff for. -- Anon Guest
Hobbyists are easy to buy for. Well. Most of them are. Gardeners will love you for getting a big bag of manure. Leatherworkers - the less said about the gross stuff that Leatherworkers would thank you for, the better. Especially if they do their own tanning. Arts and crafts people will be grateful for infinite art supplies.
But if you happen to be a member of the Clean Beach Patrol, and know a Necromancer? That's when you enter a state of friendship symbiosis. Bodies float, and floatsam of all sorts winds up on the beach. Things that would disturb a casual passer-by because most of them don't know how aquatic decomposition goes. My friend gets called out for any intelligent lifeforms that wash up dead on Golden Beach, just to be certain about the cause of death, next of kin, and whether or not they intended to wind up dead.
You know. The routine stuff.