TAKE FEWER TRIPS TO THE GROCERY STORE

Making bigger shopping trips less often will cut down on your impulse buys. In fact, almost half of all shoppers go to the store three or four times per week. Shoppers making a "quick trip" to the store usually purchase 54% more than they planned, according to a study published by the Marketing Science Institute.

If you go to the store three times a week and spend $10 on impulse buys each trip, that adds up to $120 extra per month. But if you go only once a week, you'll spend $40 per month on impulse buys. That saves you $80 per month, or $960 per year.