You might remember the meaning of the character 侵 with this easy mnemonic:
I tried to use my staff (亻) to keep the dog snout (彐) away from me and tried to cover (冖) myself up but he kept coming back to me again (又) and again, invading my privacy!
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.