I pay with a credit card for everything possible - I don't have to worry about carrying cash, don't have to carry change, it takes less time, and I get a comprehensive list of everything I've bought (and for how much) at the end of every month.
To me, extending my credit card usage from interactions with stores to interactions with people (a la Square) would be (and is) awesome (no more checks!).
I pay with a credit card for everything possible - I don't have to worry about carrying cash, don't have to carry change, it takes less time, and I get a comprehensive list of everything I've bought (and for how much) at the end of every month.
To me, extending my credit card usage from interactions with stores to interactions with people (a la Square) would be (and is) awesome (no more checks!).