Maybe it was written by:
> Grant Naylor is a gestalt entity occupying two bodies, one of which lives in north London, the other in south London. The product of a horribly botched genetic-engineering experiment, which took place in Manchester in the late fifties, they try to eke out two existences with only one mind. They attended the same school and the same university, but, for tax reasons, have completely different wives.
> The first body is called Rob Grant, the second Doug Naylor. Among other things, they spent three years in the mid-eighties as head writers of Spitting Image; wrote Radio Four's award-winning series Son of Cliche; penned the lyrics to a number one single; and created and wrote Red Dwarf for BBC television.
> They have made a living variously by being ice-cream salesmen, shoe-shop assistants and by attempting to sell dodgy life-assurance policies to close friends. They also spent almost two years on the night shift loading paper into computer printers at a mail-order factory in Ardwick. They can still taste the cheese 'n' onion toasties.
> Their favourite colour is orange.
Haha I went and actually looked and yep, that's it...no wonder I couldn't remember
Yeah the first two novels were credited to their "Grant Naylor" partnership, and they're both excellent.
After that, they each wrote an additional Red Dwarf novel individually / separately. Personally I've never come across those last two novels, although I always check for them whenever visiting a used book store. Maybe they were only released in the UK. They're available on Amazon in the US, but I haven't quite given up hope on stumbling across them naturally yet...
I’ve read both. It’s been years but Grant’s, Backwards, was notably better than Naylor’s, Last Human.
Backwards spent the first section of the book in the backwards universe, over years. It’s has an interesting exploration of the implications of that universe. By comparison Last Human wraps that up in a few pages and spends most of its time dealing with android assassins.
Somehow enough fragments of that stayed in my brain since 2004 to google it. My first and last real-life encounter with the word 'gestalt'.