A long time ago (as in 2005, when I got my first DSLR), I routinely shot RAW+JPEG when I traveled. The big reason for this was because at the time, most laptop computers were just not capable of rendering RAW previews fast enough to make browsing lots of images feasible. Since then, computers got faster, and software got better, and a RAW-only workflow became a viable option for travel.
When you work with digital image files, at some point we usually convert from RAW to TIFF. I choose TIFF export anytime I end up sending my images to Photoshop. The TIFF format supports both 8-bit and 16-bit color depth, layers, and Photoshop Smart Objects. The TIFF format is also open and well-documented, so most editing/viewing software can read it.
When you save a file in TIFF format from Photoshop, you get several options for compression. You can choose from no compression (uncompressed), LZW compression, or ZIP compression. ZIP compression is a newer option. I decided to take a quick look at these three saving options and see how they compared in terms of file size and saving speed.