A professional organizer since 2014, Kayleen Kelly has developed a four-step method she calls the "DeclutterCore Method," formerly known as the "Core 4 Method." Kelly asserts this approach can be applied to any space, from a small linen closet to an entire kitchen, by breaking down the organizing process into simple, manageable steps.

The first step is "collect," which involves gathering all trash and items that do not belong in the specific space being organized. Using a trash bag and a collection box helps clear visual clutter and create working room. Items that belong elsewhere can be set aside to be rehomed later.

Next is "categorize," where similar items are grouped together. This step aims to provide clarity on possessions and their quantities, enabling more informed decisions during the decluttering phase.

The third step, "cut out," is the core decluttering stage. Kelly advocates for a judgment-free approach, encouraging individuals to make gut decisions about what to keep and what to let go. For items that are difficult to part with, she suggests keeping them for now and revisiting them later, reducing pressure and building decision-making confidence.

Finally, "contain" involves creating an organizational system for the remaining items. This step focuses on assigning designated homes for each category and determining which items need containment, utilizing existing storage, furniture, bins, and baskets to establish a functional and maintainable system.

Professional organizers suggest the benefits of this method include increased success in clearing clutter and a less overwhelming process, allowing for small steps to achieve significant results without the pressure of completing an entire room in one day. Seeing all items in a category laid out can also reveal duplicates and unnecessary accumulations, facilitating a more intentional approach to organizing. Moreover, understanding what remains after decluttering helps in selecting appropriate storage solutions, preventing the common mistake of buying bins before knowing the exact needs.

However, the method may be more time-consuming than simply storing items. For those not working with a professional, completely emptying a space can be daunting, especially for individuals who struggle with decision-making or have limited time. It can also lead to a larger mess before improvements are seen. If energy or time runs out mid-process, the result can be piles of belongings in a less functional space than before.

To maximize the benefits, organizers recommend scheduling dedicated time for the task and breaking it into manageable segments. For instance, focusing on the "collect" step for a set period, like 15 minutes, or tackling one category per day. Organizers also advise starting with smaller sections of a larger space, such as a single shelf or the closet rod, rather than clearing out an entire closet at once. Ensuring proper measurements are taken before purchasing storage solutions is also crucial. Finally, they emphasize the importance of labeling and stepping back to appreciate the organized space, acknowledging that maintaining these systems requires ongoing commitment and effort.