Going to field strip my M1 Garand for the first time. Advice? Tips? Supplies?

[Herschel]

When firing the M1 rifle in competition from 1958 until about 1965 I never had occasion to disassemble the trigger housing group. Of course crawling through mud or in extremely dusty conditions might make it necessary to disassemble. I recall only once when it was necessary to disassemble the bolt. That was when the extractor broke. Breaking the rifle down into the three major groups was seldom done as we were concerned about the zero changing when this was done. I did a lot of firing with the M1 but legged out to get my Distinguished Rifleman badge with the M14 n 1967.