Is your phone running slower than it used to? Your phone might not be the problem, instead you should try clearing out the cache on your phone.
Morning Overview on MSN
How to clear your Mac cache fast & instantly speed up a sluggish machine
A sluggish Mac is usually not a sign that the hardware has suddenly given up, but that cached data and other temporary files have quietly piled up in the background. Clearing those caches is one of ...
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