It doesn't usually make sense to switch the direction of rotation, as tires often take a set from running in a certain direction. Many modern tires are unidirectional, meaning that they are marked with a single direction. That means that to switch the tires left to right, you would need to dismount and remount the tires. That then takes the job out of the scope of this post, which was how to do them yourself (unless you have a Coates or equivalent tire machine at home).

With non-directional tires, it is possible to swap the wheels left to right, and take a chance on any vibration. That will help to extend the life of a tire that is feathering on one edge, but be aware of the potential risk. If you don't notice a vibration after switching them it is likely fine.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue