Was on Op Jena (originally called Op Typhus but the Sqn Ldr in charge of the Flight objected and his boss agreed), one of several adjuncts to Granby; during the build up we certainly appreciated all the fantastic work that was being done on our behalf by people in various HQs. Our Chinooks received their intake particle separators/ sand filters just in time, the M134 procurement (which even included a GE expert coming out to the FOB to oversee the installation of equipment sourced from a "third party...!") worked really well, the Robertson tanks were exactly what was needed and GPS was an absolute godsend. Many hours studying the almanac to ensure visibility of the right number of satellites at the planned 'fix' timings really paid off - but we still used all the other DR tools as we couldn't really rely on the 'new' technology. The HQs also listened when we showed them that the RWR mod installed on deployment wasn't up to the task (way too many false returns) and quickly enabled re-fitment of the old Vulcan kit until the new stuff could be re-programmed. You even have to commend the ability of the system to manufacture and distribute the huge stocks of 2-colour desert DPM clothing. OK, it didn't take into account the experience of the Omanis (who'd rejected the original 4-colour desert DPM in favour of a modified version, owing to the unfortunate propensity for that original to virtually glow-in-the-dark even without the need for IR or other night-vision devices) but it was better than nothing.
The response from those back home stayed really good when build-up turned to dust-up. When it became apparent that the NAPS/ anti-anthrax and whooping cough innocs were doing more harm than good our in-theatre medic and the Regimental doc took the necessary action and gave excellent advice (thanks Brian!). When it became clear that the winter conditions were among the worst on record, boxes of cold-weather/Arctic kit started appearing (some of the sand-coloured windproof jackets were manufactured in 1942 and had bone buttons...); a Chinook with no side windows fitted, front door open and ramp down doing 120kts in OATs below zero is not a comfortable place to be, so the extra layers were really welcome. I only gave up the Canadian parka last year, and the high-altitude gauntlets are still in a box upstairs for use in really bitter conditions.
We felt very looked-after, and it made a huge difference. As did the wonderful surge in BFPO mail, both from families and from complete strangers. BZ to those who stayed behind but still made it all happen.