How do I reduce geometry in mesh? Over the course of modelling, my mesh has gained a bit too much geometry. If I use the Decimate modifier, it tells me I need to get rid of my Shape Keys, if I do that, the modifier messes up my UV seams. I've tried using Planar and selecting UV, but that just makes a mess of the UVs and the textures, even if I re-unwrap them.
ctrlE > Un-Subdivide will give a rather good result with your topology as it's mainly quads, then you'll have to make some corrections manually (F to make a quad from two triangles)