I use them a fair bit. Enough that I released a set of them on my site ( http://www.addedbytes.com/cheat-sheets/ http://www.addedbytes.com/cheat-sheets/ ) and t

I use them a fair bit. Enough that I released a set of them on my site ( http://www.addedbytes.com/cheat-sheets/ http://www.addedbytes.com/cheat-sheets/ ) and then made a site for other people to build them ( http://www.cheatography.com/ http://www.cheatography.com/ ). :) Certainly not a sign of ineptitude. For me, they just save me the time it takes to go to a manual to look something up. I've got a couple on my desk at the moment, for SVN (weening myself off GUI tools) and one for VI.