Just a friendly offering for consideration: If your logo can mirror associative traits, with value and benefits for and above competition...if something could represent that in their minds, when they meet, and begin to work with you; what all could, may or might be good elements to tie to your logo.
Friendly, sociable, quick, don't waste their time, they can set their clock by your dependability? These are all desirable if not required to earn and keep most clients, but if clients can say these things about you, that's really saying something, and it should be proudly represented in some way.
It will work. Simple and clean demands picking the best and a few, as opposed to every thought adding to a mess or clutter.
Like a handshake meant integrity, a fair deal and a mutual (if not "Happy") agreement, like a smile relays the joy and pleasure of doing business, picking a good way to go, will work well with you, as well as speak well of you, and for you, everyday.
If you share your colors, and associate your favorite client's and your joint feeling, take that and sum it up in a few elements of a perfect logo, what would have to be in there? Play with this. A silhouette fig? Structure? What you think now may help.
Best wishes either way.
Please feel free to contact me, if you'd like to throw me a few words that can help get you what you really want.
Be well and be good.