I have used DME three times now...once the driver had to put our bags underneath. I tipped him $5, total of 3 bags, but he was a terrific driver. Another time our driver was so much fun, that even though he never touched a piece of luggage of ours, I tipped him $5!!! However, the one driver that we got, who did the same 'spiel' about being happy to accept gratuities, got nothing. I will not tip someone if they outright ask for it!!! We had no bags for the driver to get out for us, so I didn't feel too badly about it. But, if they start on about how safely they got us to WDW and hoped our ride was a 'magical' one, and so on, then, no, I don't tip. Do a good job, you'll get tipped..not just because you ask for it.