SSD what to put on it

Got one ready to go in my system, the plan was to have most of whats on my C; drive now on it (migration).

My C: drive is only a 100gig partition so is small enough.

However I have read people move things like browser cache and documents of the SSD.

From a logical view point just apps only load once then are cached in ram, ongoing disk i/o is data.

So if I move anything that does heavy i/o to my hdd then it defeats the purpose of using the SSD? is it actually bad to keep a PST outlook file and temp files on a SSD?

Also thoughts on toggling superfetch and system restore with a SSD.

It all gets to how you organize your system and data.
Personally, I just keep my system on the SSD, but I use image restores a lot and want a small footprint to make that go faster.
I leave ALL Win folders in their default location, but keep my data elsewhere either by targeting the file save location or moving it. Since I installed MSE I let Win use the default download folder, then manually move the download if I want it kept in my data storage area.
Once you're set up you can test to see what performance difference you get by having a file on SSD vs spinner. I don't open any massive files except vids and the spinner load time doesn't bother me. You might see it differently.
I wouldn't flip tweaks, and once tweaked I leave it.
As far as I've seen, the old caution about repeated writes to SSD's "wearing them out" has been mostly discredited. I certainly don't worry about it, but do keep my page file on a spinner. Not that it gets used much.
I've played games installed on SSD and spinner, and notice no difference.
Unless you're loading massive files, most likely you'll only notice the SSD when you boot. Think it knocked my boot time from about a minute down to 21-24 seconds.

Put all you can on it, especially the browser and other caches to reap the most benefit from it. Wear leveling algoritms are good enough nowadays your drive should last 10 years or more.

keep your movies, photos, downloads, etc. on a separate spinning disk. Put frequently played games on the SSD. The levels will load faster.

yes I dont plan to put video files and such on it. My question is more related to my outlook pst file (which has noticeable hdd delay when using it since its many gigs in size) and temorary files used by browsers etc.

My my documents folder I dont mind putting on a hdd.

Currently alot of my stuff is not on C: since I have 5 hdd's, so generally all multimedia, games, backups, and some apps which I have in portable install locations are not on c:. So these wouldnt be on the ssd from the off.

Also system restore which I read to disable, this makes me wary as once before this did actually saved me and since then for that reason I have kept it on, cant I simply just restore the restore points or disable only the automatic daily restore points?

There is no reason to disable system restore. I have all of these things enabled, use my 128 GB SSD for my browser and Photoshop caches and Photoshop scratch space. I have had this over a year and the wear level indicator is that I still have 12 years of erase cycles left. The only thing I have done is put a small pageffile on the SSD with a larger pagefile on one of my spinning disks. I really don't hit the pagefile as I have plenty of memory.

thanks thats good to hear.

ssd is in system now on port 6 intel sata port. (cables mess would be extremely diffilcult to put on port 1, but bios allows to pick boot device)

So after some sleep I can start my migration tommorow hopefully.