Indeed. Much like gasoline is priced to the tenth of a cent, but I don't see too many people losing sleep over the rounding up to the nearest cent that is occurring now. If we choose to demonetize the cent, merchandise could still be priced to the cent, and electronic forms of payment can still be conducted to the cent, but cash transactions would be rounded up or down to the nearest five cent increment. I don't think it would be terribly difficult or will cause too much dissent, except of course among some coin collectors who want to continue their penny collections.
Actually, you're paying the fees whether you like it or not, because (in most circumstances) the fees are on the merchant end and passed on to the consumer through higher prices. As for the mortgage, in most cases (especially with today's interest rates), you are better off financing. Especially if you are good at managing your money (i.e. investing), or if you have better uses for your capital (i.e. small business).
you should all read this: http://www.amazon.com/Total-Money-Makeover-Classic-Financial/dp/1595555277/ref=sr_1_1?s=books&ie=UTF8&qid=1412194406&sr=1-1&keywords=dave ramsey total money makeover
Who leaves a $2 tip? I had to double check to make sure I didn't stumble upon a weird time rip leading to an alternate 1950 with internet.