There are loads of offerings Dam Small Linux DSL for example. The problem with some of these lighter distro's is "What you gain on the swings you lose on the roundabouts" so for example, I agree with you on Ubuntu, it's fairly easy and straight forward to use however some of the lower footprint offerings require a bit more knowledge to modify and maintain. XFCE for example is very light but is not a Wizard centric as Ubuntu.
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