Scent has a huge impact on memory. If you keep something that you enjoy smelling right next to where you keep things, you will have an easier time recalling where the object is. For example, if you keep a plug in air freshener right next to where you keep you wallet when you are home, you will have no problem remembering where it is.
Things are easier to remember if they have a special meaning to you. Think about why you need to memorize the information. For example, if you are going shopping, ask yourself why. It could be for your child's birthday and thinking about that, will help you remember what you need to buy.