Speaking for what I’ve seen from the SUM180 community, people have seemed to struggle with high health costs (hard to know how much could be done there), high transportation costs, home maintenance, and entertainment costs that can really creep up on you.
Speaking for myself, I found that my cable bill has become crazy and that my “personal services” are way out of control – that’s: the weekly tennis lesson I used to take, hair/highlights/waxing/nails, memberships, you name it. I found a lot of savings in these areas and could/should find more!