I do a lot of work for people that can’t physically do the items and I feel bad when they ask
“Will you throw away by broken BBQ”
“Will you move this big rock”
“Will you saw those three big branches”
I feel compassion for them and before you know it I am doing 8 hours of work for free on a 5 day project.
When they ask, assume they expect to pay for the extra work and quote them a price. “Well, yes, but I’d charge $20, plus whatever the disposal fee I have to pay to get rid of it” or “That ought to take about 20 minutes, by the time we get the mess cleaned up, so sure, we can take care of those branches for, let’s say, $X. That’s for piling the branches for your regular lawn service to haul off or to hack them up small enough for your curbside composting pick-up. Hauling it away will cost us extra, because we don’t get free composting. We’re commercial, so when we dump, we pay.”
Sure, people may hope you’ll “roll it in,” and be happy if you do, but they’ll not be offended to be gently told that you are trying to make a living while your back is still good, against the day when you’ll be paying someone else to do your yard for you, and that you will incur expenses for doing what they propose. Do unto them as you’ll want to be done by and will expect to do for your future employees, and don’t feel guilty about it. If they don’t like your price, they can negotiate or else find someone else.
We talked to a fellow who gave us a low bid for a project, and asked him why the others were so high. He told us he personally puts a high bid in for a project he’s not that wild to take, and lower bids when he is more in need of work. That seemed reasonable to us. IOW: don’t overthink your quotes. Ask for what would make it worth your while, which can change from day to day. That is the beauty of being an independent contractor.