How would you approach choosing a fairly short but meaningful domain name? Common words are obviously going to be taken.

I have a handful of domain names used for different things, but my main one is 17 characters long and made up of 2 words and not particularly interesting (my surname + another word). It's relatively easy to read out to people over the phone, but inputting it in a phone handset or on a device without a keyboard (e.g. setting the hostname + domain of a media centre with a remote control) is a bit tiresome.

Doesn't even have to be something I can say easily as I mainly want it just for "infrastructure" purposes rather than to host a website etc.

I'd probably use it for sign-up e-mails to reduce the amount of spam/newsletter mail (I do generate a separate address for signing up to most services) but other than that wouldn't be using it regularly for e-mail.

But I don't want something meaningless like abcxyz.