You might remember the meaning of the character 薄 with this easy mnemonic:
My sister is very mean. She used to tell me that flowers (艹) had droplets (氵) of fairy dust on it, and if you collect ten (十) flowers, you can use (用) them to birth a fairy that is one inch (寸) tall.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.