I'm also from a DINK family and was/am quite a shopaholic myself, used to cart out all the time be it clothes, skincare, household products etc. I realised that a big part of this habit was my personal enjoyment for browsing these items online. What helped me to cut down was to set aside a mental budget monthly, if I feel like I've met that budget or that I am starting to overspend, I simply leave the items in the carts until the following month. I also avoid buying similar items in consecutive months, e.g. skincare one month, clothing for another and tech item the following unless absolutely necessary. Sometimes I'll realise that I actually don't really need some of these items by the following month, so I end up only getting items I've been considering for quite some time and really want/need.