I've found that this cache folders take 1,5GiB of my 16GB Nexus 5:
store_00010001/Pictures/cache/com.google.android.googlephotos/picasa--{0,1,2...}
Is it cache of some app, which I can easily remove from phone level? (App settings -> clear data/cache?) Or do I have to clear it from computer periodically?
block folder creation with an empty file
on my phone i created this empty file
/storage/emulated/0/Pictures/cache
that folder was 7 g on my phone
https://plus.google.com/photos/yourphotos say "3306 photos"
if i deleted the folder, it reappeared the next day
no side effects noticed by using this solution
auto backup still works
tested on my nexus 5
I was just having this same issue and found that I had to clear the cache data for the Gallery (which you have to get to in Settings->Application Manager->All->Gallery). This cleared up over 1GB of space for me on my internal card.
Note: I used an app called Memory Map to get a visual representation to see what was taking up so much space on my internal storage since it was originally just a Google alert telling me I was out of space.
You may install App Cache Cleaner application. One of the feature is "auto clear all cache at a specified interval".
Configure it once and it will never let the cache grow such large.
Yes, you can clear Photos's cache from the phone itself.
