I'm just starting monthly invoicing for my lawn care service. I've always just collected as I went along. So now I'm putting together something decent looking on MS Excel that I'll leave after 3 cuts and expect payment (for 4 cuts) by the time I show up for the fourth cut. SOund alright? Well the real question is that some of my cutomers (all residential) throw in a tip each week when they pay. Should I put gratuity percentages somewhat like they do in restaurunts right on the invoice? It would be something like this: Price per cut: $250,000 Cuts:4 Last Month TOTAL: $1,000,000 Gratuity 10% is $100,000 15% is $150,000 20% is $200,000 Please call 111-2222 with any questions about your billing. Thanks your for chooising H&H, where if you dont tip, we talk bad about you in the truck! (omit last clause form real invoice). Does this come across as "expecting gratuity? Will customers who already tip weekly tip monthly? Opinions are apreciated! *I accidentally posted this in general and brought it here for more hits.