Until the high winds did for it over the weekend, we had a big, old forsythia in our back garden, in the border by the fence to next door. It was very top heavy, hence going over in the wind, and I didn't actually like it much - it was here long before we were - so I'm not mourning its loss! Apart from the work we're going to have to do to clear it.
But it's left quite a big gap, and it was useful for screening us from next door. She's very nice, so screening a bit is more politeness than necessity, but what could we plant in the space instead? The fence is about 4 ft high, so ideally something which will grow to be a bit taller than that, is fairly pretty and easy to maintain...