You are lucky to have a neighbor that will do it. I miss my neighbor in Tahoe right now because they would do it for free! I had to board my dog (yes I dragged her to the East coast via car!) it was $24 a day plus $4 for walking and extra play time. I have to say I'm in the market to find a reliable trustworthy person to do it now because that was probably her first and last kennel stay. I interviewed people to do it and they almost seemed like it was something they would 'fit in'. They asked between $16 to $20 to make the visit and it was about a 30 min visit as they said. To give meds was more. I would rather have someone just stay here (I have a cute house on the water) and well...forget that...people wanted $70 per night. I thought, they should be paying me! as one was excited to get away from her roommates! so I'm still in the market. Sigh...I wish my neighbors were more friendly...

With that giant ramble...I would say if she's coming over twice a day, I would give her between $16 and $20 because she's right there, and no gas to burn!

One thing I would suggest is to please take your valuables like jewelry, cash (aka small stuff) that you have in the house to a security deposit box or other place. Not that you shouldn't trust your neighbor but a long time ago I had someone I didn't know that well check on my dog and I still have a watch and necklace missing. It just makes it so you don't get put in a bad position...have a good trip!!!