Yeh, I've worked with Wor Lass for about 10 years now. She's mostly part time though; we set off in the morning with 400 litres and some days it's gone by lunchtime, so I drop her off, fill up and head out by myself.
She tends to do the easy stuff and I do the accounts with the awkward reaches. We work well as a team, it takes a bit of practise, and when we're on the ball, we have a good hourly turnover.
We get on okay together, rarely fight much (not anymore anyway), and I prefer working with her than some smelly bloke.