bash bashrc and inputrc niceties

There's a few tweaks I always make to improve usability on a new installation; here are some which in my opinion aught to be provided by default:

Add the following to .bashrc to make sudoedit and a few other commands work nicely:
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# Set these to the editors you'd like to use in text and graphical environments respectively:
export EDITOR=nano # or vi, vim, emacs
export VISUAL=gedit # or kwrite, kate
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Also add the following since it makes 'git log' and a few other programs interact with the terminal better (mouse wheel scrolling, doesn't mess up shell history):
export LESS=R

Add the following to .inputrc for easy history searching with ↑/↓ arrows:
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"\e[A":history-search-backward
"\e[B":history-search-forward
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(see http://askubuntu.com/questions/59846/bash-history-search-partial-up-arrow)

Note that I can't guarantee there's no nasty side effects, but I've been using all the above for a months-years without problems.