Today, I took time out to actually roll out all the coins I've saved over 4+ years in a cookie tin to see exactly how much money I've saved.

Pennies: 25 rolls = 1250, $12.50 + 37 leftover ($0.37)
Nickels: 6 rolls = 240, $12
Dimes: 7 rolls = 350, $35 + 36 leftover ($3.60)
Quarters: 3 ($0.75)

Total amount rolled up to be taken to the bank: $59.50
Time elapsed: 2.5 hours
Hourly wage: $23.80 per hour

Time Coinstar probably would've taken to sort through: < 5 minutes
Total put into Coinstar (including leftovers): $64.22
Total deducted for sorting (8.9%): $5.72
Total amount when taken to Coinstar: $58.50
Hourly wage: a lot more

Lesson learned: unless your coin jar has a good percentage made up of quarters, it is not worth the time and effort to meticulously roll up all the coins you have in order to save on the extra 8.9% that Coinstar will take from you. And even then, it's debatable. You might as well just roll up your quarters (and maybe dimes, they're pretty tricky cuz they're like 1/3 the size of nickels but worth twice as much) and take the rest to Coinstar. Totally not worth it, but a good exercise in doing it, plus I was able to watch 5 episodes of Pinky and the Brain on DVD while doing it. Not a total loss.

In other words, wait until you have your own washer and dryer, so that your coin jar will actually have quarters before you feel the need to roll up your coins. And even then, the pennies aren't worth the trouble.