You might remember the meaning of the character 谎 with this easy mnemonic:
In order to win the election, you can't lie in your speech (讠) and you have to give flowers (艹) to every family. Furthermore, you have to put a lid (亠) on all the crimes such as slashing (丿) and stabbing. You have to draw a clear line (丨) between right and wrong.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.