why is my drive almost full? & Can I delete library,caches containers and app support files?

ok so the go is I cannot delete anything here ? (cache?, containers?)

Thanks guys, all good advice, I appreciate it.

Terence thanks for the link I didnt notice that as a link when you posted it.

Ogel, Dwb thanks.

my itunes is 32GB, how do I move that to an external drive?, (I dont really listen to music when I leave home with my mac).

thanks again everyone, I now have a very clear picture of what to do and not do, thanks for the links too. much appreciated for your time.

thought I would update this thread, as i`ve tried a couple of mac cleaning softwares,

firstly I tried omnidisksweeper and grand perspective, which was interesting to see what files took up the most space. after grand perspective I decided to delete excess unused language files, and only kept those relevant to me.

I used the following to clean my computer,

firstly my "other" reading was 132gig and this is what I wanted to get rid of as much as possible,

after running "cleanmymac 3" from macpaw, I got back about 27 gig, but my "other" went up to 162 gig, which was surprising but in hindsight that was due to the apps reading 3.37 gigs which is an error as you will see in the next screen cap.

so I then ran a software called "cocktail", which somehow cleared 80 gigs from "other" and gave back an extra 35 gigs totalling 66GB.

as I mentioned apps was an error reading in the previous screen cap coz here it is at 52.22 gigs for apps after running "cocktail".

In a nutshell I started with just over 2 gigs available and with "cleanmymac3" and "cocktail" ended up with 66GB available. can`t complain.

** on another note regards my ipad3 I purchased "phoneclean" it did an ok job at clearing "other" and getting me back 5 gig of data space.

Terence these are mainly system built up files from normal mac operations, when I uninstalled all languages except english and 3 others that took a long time. the rest were quite quick. There were also copies or legacy left overs from duplicated apps, installations and all that stuff built up from other operations.

you can actually download cleanmymac3 and cocktail for free and run the tests, they will show you everything they are working on.

clean my mac will then ask you for payment to actually delete the stuff. cocktail gives you 10 free cleans before asking for payment and its quite indepth.

but both were easy to install and use, just a one click operation. happy with the result, I use a lot of adobe products so I can see why the "other" is still holding 70+ gigs, they hold a lot of cached data etc.

cocktail

cleanmymac3

"grand perspective" was an interesting app to see a visual representation of every file and its physical occupation size on my mac.

<Links Edited by Host>

here`s macpaws instructions as to how to remove it,

You can remove CleanMyMac 3 is by simply dragging it to the Trash. However, by doing this, as with removing any other app, it will leave application leftovers on your Mac.

It is recommended to use the Uninstaller module of CleanMyMac 3 for complete removal. And here's how you do that:

1. Open CleanMyMac 3.
2. Proceed to the Uninstaller module.
3. Find CleanMyMac 3 in the list of apps found by the module.
4. Click Complete Removal in the Smart Selector panel to mark the application file and all it related items for removal.
5. Click Uninstall.
6. Confirm that you are going to remove the app in the newly appeared message.

We will be pleased if you drop us a note why you've decided not to use the application further and uninstall it from your Mac.

and a good thread on removing other remnants...

How do I remove Clean My Mac 3 from Mac book pro with OS 10.7.5