You could try our software PeerHash. If you have more than 1 core/CPU available it will use 50% of the CPU cycles for 5 to 7 minutes approximately 3 times per hour. It is primarily for Monero and you can also win hashing power from other PeerHash users, that is, other people will be donating their CPU cycles to hash for you. Mining hashes are submitted to Dwarf pool who will pay you once you have reached a minimum of 1 XMR. All you need to do is enter your Monero address in the config of PeerHash and download the XMR miner. Your wallet can be on another machine. It is a great way to accelerate your Monero earnings with low impact to your CPU. On a 2 core laptop you will notice little impact to your work.
Main site: PeerHash Latest beta: http://peerhash.com/gui/peerhash-v0-012-beta-release