Of course, mnemonics aren't a panacea, and there are a few important limitations worth keeping in mind: 1. Not all mnemonic techniques are equally effective. Some have stronger scientific support than others. 2. Spaced practice and retrieval remain important for long-term retention. Even an effective mnemonic doesn't replace the need to revisit and actively recall what you've learned. 3. Individual differences matter. The effectiveness of a technique can depend on the learner, the material and the learning conditions. 4. Provided versus self-generated mnemonics may differ in effectiveness, depending on the task and other factors. 5. Mnemonics should be used selectively. Not everything needs a mnemonic, and sometimes a simpler approach works just as well.