Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to identify cold spots in your fridge [title] Gather a notebook and writing utensil. [step] The main problem with cold spots is that they're invisible, which makes them easy to forget. Having a notebook and writing utensil handy in the kitchen will give you the opportunity to make a log of freezing.

Ending1: A notebook is great to provide to yourself as well. [substeps] If you find the coldest spots on your fridge, you may need to make one yourself. Ending2: If you don't have one, it's a good idea to have a spare ice cube handy so you can take note. [substeps] One disadvantage to having two ice cubes in the fridge is that you'll be able to refill the ice you keep in the freezer. Ending3: [substeps] You might find it even easier to remember this if you use a magnetic pen/notepad. This way, when you look at the fridge, you'll be reminded about cold spots. Ending4: You can also carry large amounts of paper and pen so that you can write down specific keywords that you need to remember. An ideal notebook is a composition book, in which you write down everyday phrases that are important to you.

Answer format: ending1/ending2/ending3/ending4