You might remember the meaning of the character 遣 with this easy mnemonic:
Hello, 911? Can you dispatch a team to help me? I'm so drunk I can't walk (辶), and my mouth (口) tastes like its lined (丨) with cotton. One (一) hour of drinking by myself (己) and I'm a wreck!
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.