This post is about having a little fun while saving at the same time. It may sound archaic but it works for frivolous purchases. When at a store make sure you pay in cash and put away any $1 bills you receive as change. Don't use them for the rest of the day. If you buy coffee later and it's $1.79 take out a $5 and pay that way. At the end of the day take all those ones out of your pocket and put them in a bottom drawer somewhere. See how many you can collect in a week, month, or even year. I just did this for three months and had $350 - that's about $115/month in savings I didn't even know I was doing. That's $350 extra for dining out, a small trip, or even splurging on Guinness instead of Miller Lite for the month.
The first time I did this was in high school, when my dad suggested I save all my change. Well, high school came and went and sure enough I had over $1,000 in change. So what did I do? I ran to Best Buy and bought a DVD player (they were new and exciting at the time) and a bunch of DVDs I still have yet to watch, but the point is this small saving can really add up over time.