What partitioning do you have on your hard drive? And what folder structure?

I never managed to get a /boot partition working on GPT.
Not sure if because of me or cfdisk.

An OS might strech over many partitions, and you could put multiple OSes on a single partition (not exactly very elegant, but possible - for example, see 's picture where Win98 and DRDOS sit both on a single FAT16 partition).

Primary laptop
Disk: Unknown 240GB NVMe M.2 SSD
256MB ESP vfat
/EFI -> rEFInd
/ -> vmlinuz, vmlinuz-failsafe EFIStub kernels
4GB swap
~236GB Gentoo rootfs f2fs
Generic Gentoo system for the most part
/var/cache/ccache/ contains ccache files for Portage, each package gets its own directory
/usr/local/bin contains self-made helper scripts
/home/$USER is structured in directories like
Documents
Movies
Music
Downloads
where everything except Downloads is automatically synced via ownCloud, all file contents are encrypted on the server. No LUKS or anything on the local machine, and while my kernel does support native F2FS encryption, so far I never used it.

The desktop/home server I never use
Disk: Seagate Barracuda 5400RPM 2TB literal 2011-tier SpinningRustâ„¢
~1.7TB generic Win7 Ultimate with gaymes
~2MB grub_bios
~128MB ext4 boot with GRUB and kernels
~270GB Gentoo rootfs ext4
/main.swap: 10GB swap file for emergencies
Otherwise same setup as above except the synced folders in /home/$USER are all in a designated folder, all other directories are random junk and the source for a custom out-of-tree rt8192cu kernel module.
~30GB btrfs unused
Originally designed for testing advanced cloud storage ideas, remains unused to this day.

Do you put portable programs (that don't install into the OS but just come in a *.zip etc. and work from anywhere) in "Program Files", or elsewhere?
Do you sort files by subject first and then (if at all) by file type, or the other way around (i.e. do you keep all your PDFs in one directory divided by subjects, or do you keep any PDF along with other files on same subject, regardless of type)?

/home/
/OS(linux)/
/data/ ntfs
/data/ ext4
/OS(win)/

Do you keep most of your data on just one disk(or array), or is it dispersed over many disks? If the latter, how do you keep things organized and keep track of what is where?

Is that the physical order of partitions on your disks? If so, it strikes me as a little odd.

woo woo woo
you know it

Solid state drives.

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