You might remember the meaning of the character 箭 with this easy mnemonic:
I made a bamboo (⺮) arrow but my father raised his eyebrows (丷) at me. He believes only in one (一) material for arrows, moon (月) light plus sharp razors (刂).
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.