Finger Friction and Hydration

Wet fingers tend to wrinkle, and dry fingers are smooth....the wrinkly surface gives better traction because of the roughness...

https://www.nytimes.com/2013/01/15/science/wrinkled-fingers-get-better-grip-on-wet-objects.html

Wrinkled skin probably does grip better, but dampening your fingers works immediately, long before the skin has absorbed enough water to wrinkle.

Moisture softens the skin and promotes elasticity, which enables wrinkling when dragging along a surface...

I rub the bag vertically,at the entry end, between my hands,and the static electricity

will separate the layers,and also create a wrinkled surface for better grip.

Also,I avoid the clumsy effort to put large odd-shaped items in the flimsy bag by

simply inserting both hands into the bag,and inverting the bag over the

object,grasping the object through the bag.

Works great with bananas,etc.

Especially good when picking up poultry so as to avoid contact; even though they are

wrapped,they are still wet with XXX ??.

The checkout clerks also appreciate this too,(they have said so) and it keeps the

checkout conveyor cleaner.

Shop smarter,not harder!

Good tips, thanks! I'll try that next time I go to the grocery store.

Einstein explained that the reason wet sand will support more weight than dry sand is because of the surface tension of the water binding the particles together.