Tell us about yourself!
I come from a family of pharmacists and I learned from my grandpa to peel all sized bottles to reuse them in his pharmacy, perhaps 60 years ago. He used a two edge razor blades, holding it with his 2nd and 3rd fingertips against his thumb, making a slightly curved edge. Then, holding the bottle neck with his left hand, leaning the bottom of it over a table, he passed the blade curved and in a 45 degree angle, from the upper right corner of the label to the lower end of it, removing a 2 or 3 mm strip of paper. He repeated this strokes rotating the bottle as needed, until the bottle was label free. The washing is common to all systems.