Marie Kondo joined home and design writer Jura Koncius and Washington Post readers for a chat about decluttering. (M.K Sadler for KonMari)

Japanese decluttering diva Marie Kondo started out as an organizing consultant while she was a 19-year-old university student in Tokyo. Her 2011 book “The Life-Changing Magic of Tidying Up” has sold millions of copies, and her idea of keeping items only if they “spark joy” has inspired many to toss mountains of household clutter.

Her “KonMari” method has six basic rules: Commit yourself to tidying up. Imagine your ideal lifestyle. Finish discarding first. Tidy by category, not by location. Follow the right order. Ask yourself if it sparks joy.

Kondo recently joined a Washington Post live chat, answering readers’ questions about our complex relationship with stuff.

During the chat, she shared something that brings her joy. The question was “How many PJs do you think women should have. Summer and winter?” She replied, “The KonMari Method does not set a numerical limit on the number of items you should own. Rather, it is about learning what items spark joy for you. For me personally, I own 15 sets of pajamas in total — both summer and winter. Clearly pajamas spark joy for me!”

But many of us aren’t so happy with the state of our closets and kitchens and garages. There are many reasons some people can’t seem to get a grip on the towering piles of things in their life. Here’s Kondo’s advice for chat readers on four obstacles that keep some of us buried in clutter.

Space: Do not blame the size of your home for your lack of organization. Kondo said that she successfully organizes homes in Japan, a country where a 1,000-square-foot home is considered large. Her advice: “When organizing a small house, it is important to store things in the same category together — don’t scatter them in different places around the house. In order to take full advantage of the storage systems you do have — such as the pantry or closet — make sure you store everything vertically. This will help you save space.”

Sentimentality: Kondo’s main advice for dealing with sentimental items — say, things that remind you of a deceased loved one — is to only tidy them up after you have organized the less emotional categories. So start with clothing, books and papers. Kondo’s advice: “If you encounter any item in one of these categories that brings back a memory . . . set it aside as part of the sentimental category. By tidying non-sentimental items first, you will give yourself time to sort through your thoughts and emotions before going through the sentimental items you have set aside.”

And those treasures that make you happy every time you look at them? “Keep them proudly,” she said, adding that it’s not just about looking for things to eliminate, but being thoughtful about what you keep or toss — and cherishing those items you keep.

Guilt: If your parents give you gifts you don’t love, how do you get rid of them without feeling guilty? Kondo wrote that ideally, you should feel joyful when you receive a gift. After you express gratitude for it, it’s okay to get rid of it. “In order to prevent this kind of thing from happening again and again, it is important to clarify what sparks joy for you in your everyday life,” she wrote. “By discussing your favorite things with your parents, the gifts that you want can become the gifts that you get!”

Money: You don’t need to have funds set aside for buying organizational accessories, Kondo said. She believes you don’t need to buy anything to get started tidying up; just have a donation bag at the ready. Kondo said you should only spend money on items that will help you achieve your ideal vision for your home. She wrote, “If your kitchen is your favorite space in your home, that might be an area worth spending a little money to upgrade your organization.”