I agree with what’s been said especially about taking pictures.
I use clear miracle whip plastic jars with the labels removed and lids and masking tape. An indelible marker pen to label both the lid and a side of each jar even if it’s only for one part. There is nothing worse than trying to find a part or fastener that was mislaid. It can take you hours even days to find that thing or never, and all that time could have been used to actually work on the car. That is the frustrating part, but it can be avoided.
Working on your car can and should be fun, but scratching your head and saying, “Now, where is that thing?” takes away from the fun and can turn it into a chore. If you have someone helping you, lay out those labeled jars or whatever and make sure they are using them correctly.
I know that this is the correct way to do things, but I don’t always follow my own advice. I always pay for it, and it makes me mad.
If you start doing this, it will become a habit, and it will save you hundreds of frustrating hours down the road.
Have fun taking that stuff off and have fun putting it back together,
Mike