For long term i use SRD razor oil and a coat of R. I. G. then wrap in wax paper . This has worked for me for a long time. I know it worked for over 20 years on a couple of blades. Not the SRD oil but the R I G. On some blades that has a mirror finish oil will some times puddle up and leave some areas exposed. The R I G will coat evenly and stay for a very long time. When i'm ready to use the razor i just clean the oil or grease off it with tissue paper strop and shave.