I love them squarish ones,
not the bendies, though I would never
call them out because, as an aside,
they help me out so much of the time
(they are literal life savers!)
but the rigid half cube pair
are the ones I like the most!

I have never really had a call to use them,
nor, thinking about it, the chevron squad,
(this is a nickname),
mostly because I do not code,
though if I did I would, and I would
bustle and smile
at splashing them over my text files!