I'm only replying in the forum, to try to help people, by providing information, solutions and alternatives...
You said (61mb storage used)... from the 158mb storage available in the device.
You might have bought the phone recently, but it is an old and ancient device today.
There is no more development or updates available for that device anymore.
When I moved from my beloved (WebOs) Palm Pre to the Android platform, I bought the Samsung ace as a test run.
And after a day of use, I run out of memory.
Yes Facebook integration is good, but once you install the actual app... that is it, no more memory available...
I understand were you come from on regards to root and modifying.
And I don't like custom Roms either.
But I was left out of options with the ace.
So I started to read about the "root" process and I done my homework and I read so many different experiences and Instructions and...
I arrived to the conclusion that the bad rumors and story's are made by the ignorant and the irresponsible with lack of brain cells and no common sense.
Since I had nothing to loose (just a low budget phone), I decided and end up trying and...
worked like a charm.
I never looked back again.
And today I am a part time Android developer. And do my contribution in developer websites.
I strongly advise you to read the truth about the rooting process...
Do your homework, "read the feedback comments below the instructions" and "compare instructions and techniques", take notes of the correct device specks, and finally use the little test (guinea pig) ace as a test run since you have little to lose.
And find the truth for yourself.
Mark my words,
You will not regret it.
Rooting a device is unlocking the truth potential of the phone.
You will be surprised about the potential of any phone after being rooted.
Best regards
Ps:
Please don't be cruel to the cat. lol
Smokey