a lot of something
OR
something heavy
"my teacher gave us a nifty assignment"
Not handy-dandy, but could be used for the same context.
Thanks to my nifty difty blanket here, i can keep warm.
A Reddit enlightenment that celebrates boobs of all shapes and sizes.
I have no problem writing “nifty tits” on my boobs and posting them to r/NiftyTits so that I can feel empowered and uplifted!