For instance what ServiceM8 includes, having a section for 'client signoff' or something similar so that the quote can be approved on the spot on your own device or to have a client signature added to the quote like how we now have the 'Pay Now' button on invoices for the Online Payment option.
Just for reference of the ServiceM8 feature for quotes and invoices:
https://support.servicem8.com/hc/en-us/articles/203251030-Collecting-a-customer-s-signature-for-quote-or-invoice-sign-off
Thanks team!
"Have the option for a signature on a quote"