My favourite tool is my RS Pro auto-ranging digital multimeter. I love how compact yet functional it is. The display is easy to read and it is truly fantastic value for money. I would love to add a modern digital storage oscilloscope to my tool inventory since this will really allow me to better troubleshoot some of my more timing sensitive projects, for example where high-speed digital communications is used. Typical projects include power electronics and home automation. I would like to do more projects related to analogue electronics like audio amplifiers and mixers as well as digital communication protocols in the future but do not currently have access to a digital storage oscilloscope to aid in the proper design of such projects.