You might remember the meaning of the character 统 with this easy mnemonic:
I have no idea how to perserve silk (纟) garments, but I've united all my pieces and put all of them in a private (厶) box and put a lid (亠) over it to protect it from sunlight. I really like how my silk pants feel against my legs (儿)!
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.