Random Riddle: Many Squares - Common Sense Evaluation

I am a cylinder
Made up of many squares.
Spinning like a paint roller,
I offer my bounteous fare.

I can be soft and gentle,
But I am abhorred when I am not.
I am often found waiting until,
the need arises on the spot.

I am not the most charming,
But I am found in most homes.
I’m nowhere to be found? Alarming!
Often, nearby is a mirror and combs.

I blot a little here;
I wipe clean there.
You need me to be near;
A tug, a pull, a roll and I tear.

What am I?

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