if you have lot's of bench space like me. I got rolls of butchers paper and I drop them in piles then write on the paper what they are and any notes I can think of to put them back togeter.

when pulling wires and hoses off if it looks complicated then I grab some thin masking tape and the same pen and write where they go. if their's too many I just resort to mumbera and letters in both ends.

obviously wires and vac/heater hoses aren't going to kill you if it's a a series....

This method only pays if you have a BIG bench space and it's not going to be apart for too long.

abviously I use envelopes for longer periods of time.

Idon't like the glad bags idea as I was forever letting the texta's dry out and eventually can't find one that works!!!! bit of a bummer.... pens don't dry out

obviously envelopes like to tear and their's their downside. Just putting it out there for ya you might not have enough bench space though???