Yes Andy, before my long term health issue, I too had C.Mgr,  C.Eng, FCMI, MIET, MIRSE.  As I understand that the protocol is that the most senior should come first, that dictated the order., They were all highly relevant to what I did given that I provided engineering consultancy across all sectors, but with a special focus on rail, but was also Professional Head, and also provided Management Consultancy. So I did use them all, but used to feel a sense of embarrassment when I used my business card. In other communications, I used to select only those relevant to the context. 

Eventually, I started carrying multiple business cards so that I could use one focused on the context. 

Because my C.Mgr, and my memberships of IRSE & CMI lapsed when I had my health break, given that I thought I was finished for life (thankfully I was wrong!), when I resumed work, 6 years later, I only had C.Eng and MIET, and in the work I've done since, these are the only ones relevant, so I've not pursued resurrecting the others. That has made life much simpler! 

As for business cards, absolutely Andy, I used to carry a business card portfolio in my briefcase (another thing that's in the past) and consulted it regularly, but that's now replaced (as is so much) by the phone. I  don't have them myself, these days, and when people give me theirs, I frankly don't know what to do with them, especially when I already have their contact details in my phone. It feels superfluous. I accept them out of courtesy. If I don't already have the contact details on my phone,  I enter them if I think I'm likely to contact them again. And then...... well, I somehow can't discard them as it feels discourteous (which is daft, I know), so they end up in a general pile that, realistically, is just junk.

Yes Andy, before my long term health issue, I too had C.Mgr,  C.Eng, FCMI, MIET, MIRSE.  As I understand that the protocol is that the most senior should come first, that dictated the order., They were all highly relevant to what I did given that I provided engineering consultancy across all sectors, but with a special focus on rail, but was also Professional Head, and also provided Management Consultancy. So I did use them all, but used to feel a sense of embarrassment when I used my business card. In other communications, I used to select only those relevant to the context. 

Eventually, I started carrying multiple business cards so that I could use one focused on the context. 

Because my C.Mgr, and my memberships of IRSE & CMI lapsed when I had my health break, given that I thought I was finished for life (thankfully I was wrong!), when I resumed work, 6 years later, I only had C.Eng and MIET, and in the work I've done since, these are the only ones relevant, so I've not pursued resurrecting the others. That has made life much simpler! 

As for business cards, absolutely Andy, I used to carry a business card portfolio in my briefcase (another thing that's in the past) and consulted it regularly, but that's now replaced (as is so much) by the phone. I  don't have them myself, these days, and when people give me theirs, I frankly don't know what to do with them, especially when I already have their contact details in my phone. It feels superfluous. I accept them out of courtesy. If I don't already have the contact details on my phone,  I enter them if I think I'm likely to contact them again. And then...... well, I somehow can't discard them as it feels discourteous (which is daft, I know), so they end up in a general pile that, realistically, is just junk.