'Backbearing' and free downloadable tables

The normal book requirement for Astro-Navigation is a current Nautical Almanac and Sight Reduction Tables. Regardless of expense, they are also a fairly hefty set of  'tomes' to have to cart around with you.

This year I have been using some free tables downloadable from an excellent website called 'Backbearing' Not only can you download this years Nautical Almanac, but you can also download sections of Sight Reduction Tables (SRT). Rather than having to download all latitudes, this convenient website allows you to download the SRT's in 7 degree blocks.

So, this year, all I needed to do was download the current Nautical Almanac, but only print out the required months I would be away, and to only download and print the relevant latitudes I would be working at. Still keeping to the 'Astro' ethos, I'm carrying paper tables, but now they all fit into my sextant box, most convenient...