You might remember the meaning of the character 即 with this easy mnemonic:
A snake (乚) bit my dog on his snout (彐) , but he seems alright. There are just two tiny dots (丶), so I think I'll just seal (卩) the wound right away with a bandaid.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.