Sprinkles - part 2

In Sprinkles - part 1 I suggested that you send off a $20 coupon with a thank you note.

Remembering that "Business is the exchange of two pieces of paper, one of which must be a cheque", and what a pain it is to trek off to Tim Horton's each time you want to send a Thank-You note, consider buying a half-dozen coupons all at once, and then you can pop them in the note without trekking through the snow.

Or better yet, pop one in the invoice that you mail out.

Your client will be doing business with you, whether they know it or not, and guilt will help them shove your invoice through the accounts-payable pipeline.