Habits
Mistakes almost everyone makes
Most missed wins are not dramatic. They are a checkbox, a second entry, a prize you cannot claim, a mail-in in the wrong format. You will make a few of these. The aim is to make them once.
Entering when you are not allowed
Age limits, void states, one per household, employees and their households excluded. Two adults at the same address are still one household if the rules say so. Agree the rule before you both fall for the same car.
Missing the format
A typed card when they asked for handwritten. The promotion name almost right. A photo in the wrong shape. These feel fussy until you remember a tired inbox is sorting a pile. Fussy rules are a filter. Meet them and you are through it.
The prize you cannot use
Trips on fixed dates, tickets in a city you will not visit, a car with a tax bill you have not looked at. Entering anyway clogs the session and, if you win, can become admin rather than joy. The US tax point makes this sharper than it is in some other countries. Read taxes before you celebrate a headline prize.
Speed, famous prizes, and systems
Autofill will happily submit a form you have not checked. Glance at eligibility, the end date and the entry limit before you press the button. A month of only dream homes teaches you nothing, because the result is almost pure chance in a huge field. Lucky times, copied slogans and paid insider lists do not move a well-run drawing.
Two weeks without a win is not a signal. It is a Tuesday. Stopping because you do not enjoy it is not a mistake. Stopping angrily in week three, then starting again expensively in week five, is.