I "get" the additive effect of multiple $10 bills. I'm not against that.
I'm just saying that an hour spent canning garden produce (for example) may provide a much smaller return than an hour spent trying to make larger expenditures more wisely. Right now I'm furnace-shopping for both our house and my investment property. Not knowing what I'm buying (Is it the right kind? The right size? Is there a good contractor out there?) will cost a whole bunch of $10 bills more than I'll save canning. Spending an hour reading articles on where investment markets are headed can earn us way more than $10 -- or avoid much larger losses than $10.
Neither of these are set-it-and-forget-it activities. Maybe I won't buy another furnace for 15-20 years but I'll likely end up buying a roof. Or entry doors. Or a car. Or selling a house and moving. Or going on vacation. Seems there's almost always a bigger-ticket item out there to spend lots of $$$ on.
Neither approach is invalid. I'm just wary of being so busy saving dimes that I don't watch how I make (or lose) dollars.