When you've touched up the chips, as Neil has done, I would get some protective film applied. I have Defendall on the cowl, around the headlights and on the rear wheel arches.
Chipex do good touch-up kits which, if I recall correctly, consist of a base-layer, paint and a clear lacquer - and the means to apply them.
I think we are all agreed about the shocking state of the roads, especially bad in Bucks & Northants. The councils seem to want to ignore the problem completely. Yesterday on a not particularly spirited drive around Northants villages I could see a large pot-hole coming up on the left so went into the centre of the road to avoid it, and completely failed to see the mound of stome chippings that had been kicked out of a previous attempt at repair. The low point of the chassis cross-member caught the chips and slung them along the length of the underside. The noise was awful. Stopped to inspect. Nothing evident except chippings on the running boards. But when I got home I had to spend some time with a log-handled paintbrush sweeping bits off the chassis ledges
