Clean up after yourself - and let the client know in advance that you do so. Far too many tradespeople of all sorts do their job but leave scrap material, packaging, off cuts, dirty shoe prints etc. Probably more common in new construction than service work, but it's just annoying for other tradespeople and for the client/general contractor or whoever. Irritating to have to clean up after other trades when they've been paid well enough to take a moment to clean up after themselves. If you're doing service work, be very tidy, clean up and dust/debris/off cuts/trimmings/wire casings etc and leave no trace that you were even there - and be quick about it, ofc. No need to camp out cleaning.. just tidy up and gtfo. If the floors/weather warrant it, maybe wear those slip on disposable bootie covers over your shoes.
Cleanliness is HUGE when it comes to customer satisfaction, referrals, repeat business etc in virtually every trade.
As for how to communicate it, I would say to communicate in the medium your client prefers or communicate with you in. If they email you, email them back. If they text you and don't request a phone call, text them back. If it's more convenient to speak, ask if you can give them a quick call. If they phone you, talk on the phone. If they send a message and ask for a phone call, phone them. Some things I like via email - like a quote.. but other things I prefer over the phone.. discussing options or asking questions/getting input or advice. I don't want to go back and forth via email throughout the day when I can have a 5 minute phone conversation and get to the bottom line and then have someone email me a quote with exactly what was discussed and determined over the phone. Conversational things verbal, information I need in writing for my records, email it.
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for supporting trump. Because doing so is deplorable.