Stick x amount of money in an old coffee can each day. At the end of the month empty it out and deposit it into your savings account.
Find a way to save a bit each day. Skip the coffee and doughnut, stick $5 in the can. Buy generic cereal instead of the name-brand, you kids don't care, stick the difference in the can.
Don't leave your can sitting around out in the open...its not polite. Plus it might get stolen.