I use Reddit a lot and I find some of the finance focused subreddits to be really repellent. I don't know if this is because, while I have a degree in economics, I'm not an investor or that I just have a low tolerance for some of the conduct that frequently shows up in those communities. I really like /r/povertyfinance though clearly those folks are often going through way, way more trying circumstances I am. I guess…
I agree. If it were up to /r/personalfinance, everyone would have three credit cards and that's all they would ever use and it would solve every financial problem ever. They fail to realize that many people (myself included!!) are just not equipped for credit cards and it can cause huge problems.
That being said, if you can handle credit cards, not using them is just leaving money on the table. I get 2% back everywhere (more in certain categories), which is better than most high interest savings accounts. If you don't get that 2% back, you're still paying the interchange fees (~3%) for other people because stores don't charge a different amount for cash/debit vs credit.
However, getting 2% (or more) back isn't worth it if you end up spending more money. The emphasis should be on changing spending behavior, not on payment optimization
My wife isn't very good at saving, so our solution is that I review our spending periodically and we discuss anything over $50 that isn't routine spending (e.g. grocery stores), and we each get $X/month for guilt-free spending. She tends to spend it as she "earns" it, while I save up month to month until there's a good deal so I get more value, add I occasionally treat her if she's run out of cash and has a craving.