If you want to carry around a portable oscilloscope device at all times then check out this cool geek watch, the Oscilloscope Watch by Gabriel Anzziani of Gabotronics:
The Oscilloscope Watch has all the features of a modern watch (time, calendar, alarm, etc…) combined with all the features of the popular Xprotolab (Oscilloscope, Waveform Generator, Logic Analyzer, Protocol Sniffer, Frequency Counter).
Check out the Oscilloscope Watch Kickstarter here.
Oh how often I needed to keep the probe tips on the right tight spots, watching carefully not to make a short with them in live circuit, while twisting my neck looking over my shoulder to see the scope screen! Engineer’s Yoga – Teaches you calmness, flexibility, patience, and breathing techniques.
I’d kill back then for an o-scope screen on my wrist! Both thumbs up!