So the ox thread got me thinking perhaps a thread of different methods to clean track might be of help. I’ll preface that everyone’s environment is probably going to dictate how you clean. A few things I’ve learned over years. Humidity will make every particle in air stick to rails. So dry air is huge. Now I know my house is dusty so I do a quick cleaning before every run. I don’t have cats or smoke as that will also effect rails. My other thought is those black plastic wheels seem to leave a residue so I can say metal wheels indeed make a difference. So I use cut Balsa wood I then dip in 90% alcohol then press on top of rails and slide I’ll repeat as needed it’s quick easy and picks up dust and other particles so that’s my method.