Making a calculated effort to snip your expenses isn't easy. While there are things you can do to ease the pain of cutting back, tracking spending requires daily budgeting and discipline. Clearly, some days are better than others. Most of you agree that weekends are the hardest time to keep your wallet in your purse, but there are some simple ways you can bank on time-of-day discounts throughout the week. How can you save by spending on the right days?