Is it worth it to mine while using my laptop for misc. purposes?
It is unlikely you would make any profit CPU mining unless you have free electricity. Even then the potential for shortening the life of your laptop would likely reduce profitability. There are a few altcoins that aim to allow people to mine with a CPU but its unlikely you will make more than a few cents per day.

Mining on the laptop will make the CPU operate at 100% capacity all the time. This will increase the temperature, decrease the battery life and increase the noise of the laptop (fans speed up as it gets hotter). Overall its likely you increase the chance of the laptop breaking as well.