One of the great things you have to look forward to: walking your runway. I do it almost every day, with Ted the dog, and it accomplishes many things at the same time.
1. Most importantly, it will eventually drive any ground dwellers, voles, moles, and whatever, elsewhere. Just the ground vibrations (from what I have read) from somewhat constant traffic, even a once a day or so walk, will make the other parts of your property more attractive to them. I found this out at my first strip, and now some 5 years later on my second one, not a burrow or mound to be seen, every year it has gotten better and better! What was a war is now a truce.
2. You can eyeball for weeds, and possibly just hand pick them rather then spray. If you keep up on it it's managable, otherwise it takes heavy equipment, chemicals, etc. I like keeping even my little Kubota off it if possible, the less traffic the better, airplanes with Bushwheels don't count.
3. Obviously, any loose objects or other items that shouldn't be there will be spotted and removed. When you're landing or taking off, you're too busy, walking it you can fine tune it.
4. Good excercise for me and Ted, though mine is only 400' the grade makes it more of a workout. It is my favorite time of the day.