I was on a long cross country recently and realized I had my iPhone with SD running, my IPad mounted up on the sun visor running Garmin Pilot bluetoothed to the Garmin GDL 39 3D, a panel mounted Garmin 660 also toothed to the GDL , a GNS 430 running the HSI, a Garmin SL30 NavCom back up CDI, and my Yaesu 750 handheld . So that's 6 GPS and 3 VOR NAV receivers, 3 com radios, paper sectional and terminal charts and receiving flight following from ATC.
I thought to myself:
"WTF! This is absolutely ridiculous, If I get lost on this perfect VFR day I'm a complete and utter asshole"
And to think those RAF guys done the night bombing raids over the Reich using celestial navigation.