Visual cues are a powerful way to remind ourselves of new habits we’d like to form.
For example, if junk mail tends to pile up, put a waste basket or paper shredder where the mail typically accumulates. You might be surprised how often you notice the receptacle and decide to process the mail and purge it right away instead of letting it accumulate. Even better, how about also put a folder nearby with the word UNSUBSCRIBE on it. Then, as you notice the folder swell, sit down for an afternoon and look on the back of each item for the number or website you can go to, to unsubscribe from every receiving the junk mail in the future.