I bought a few "pruning shears".

Well, (Engligh is not my native language, so they may have a different name). These are not the typical curved shears, rather they are straight and two sides are sharp. Exactly like a normal pair of scissors but the jaws are shorter and thicker. You can use these to cut anything from paper to thick leather,plastic,aluminum and tin sheets and even thin sheets of steel.... And off course you can use them for pruning, which is their intended use

They are very versatile and one pair sits on my desk just in case I needed some heavy duty cutting. They are more practical than tin snips or medical shears IMO. This is why I bought a few more