Fortunately, we can fall back on pseudonymity to some extent, as well as lying.
A close friend of mine, throughout over 5 years of college, shared one grocery store "club" card with all roommates and acquaintances, eventually totaling a couple dozen users.
The disincentives by the store to doing this, usually in the form of a bonus paid to the instant user at some predetermined spending level, were ineffective, since the group was one who would gladly pay $1 for a lottery ticket, and this was a bargain by comparison.
Personally, I routinely give bogus ZIP codes for any situation other than where I wish to receive mail.
The big grocery chain around here recently introduced a new program where shoppers get $0.10 off a gallon of gas for every $50 they spend in the store, tracked of course through their "Advantage" card. You show the card at participating stations, and they take the discount off there.
The actual savings are nominal: spend $150, fill up w/ 20 gallons (the limit), and save what, $6.00? That's only 4%!
But wow, people have become much more serious about using their own cards. Participation must be near 100%.
A close friend of mine, throughout over 5 years of college, shared one grocery store "club" card with all roommates and acquaintances, eventually totaling a couple dozen users.
The disincentives by the store to doing this, usually in the form of a bonus paid to the instant user at some predetermined spending level, were ineffective, since the group was one who would gladly pay $1 for a lottery ticket, and this was a bargain by comparison.
Personally, I routinely give bogus ZIP codes for any situation other than where I wish to receive mail.