Check out this DIY phone recorder from Muris of elektronika.ba, where it is capable of keeping tabs on all phone conversations under one roof. Of course, it is applicable to homes only and not offices. Nice to know that you won’t need to turn it on or off, since it can monitor the phone line any time the phone is picked up, heading straight to the recording function automatically. All conversations are stored in the MP3 fil format for easy purview afterwards. Neat, eh? Cheating hearts, beware!