Graveyard-based strategies are common in casual and tournament MTG. The graveyard offers players easy ways to cheat on costs (e.g. Reanimator), grind out incremental advantage (e.g. Sun Titan decks, Zombies with Gravecrawler), set up infinite combos (e.g. Melira Pod in Modern, Sharuum EDH), or short-circuit most of "normal" Magic altogether (Manaless Dredge).
However, Wizards of the Coast also prints powerful hate cards to hold graveyard decks in check, including Leyline of the Void, Relic of Progenitus, Tormod's Crypt, Nihil Spellbomb, Grafdigger's Cage, Jund Charm, and Scavenging Ooze.
Part of running a fun and powerful deck is making sure you don't just fold to hate immediately.
What are the most common and successful strategies for playing around graveyard hate, especially for decks with a graveyard-based combo element? I am interested in both deckbuilding solutions (including sideboarding, of course) and in-play tactics.