You might remember the meaning of the character 栏 with this easy mnemonic:
This fence is made out of the sturdiest tree (木) trunks, and I've drawn eyebrows (丷) with one (一) or two (二) eyes around them so it scares off intruders.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.