Working with wood is a bit like reincarnation. If you don't get it right the first time (and that's assuming there is such a thing as a 'right', which I won't go into here - it upsets people), you can always go back and have another go.
For instance, I put this gate up yesterday:
Looks OK from a distance. A bit of a gap on the right. But let me... No, I won't even begin to tell you how much hassle I had with these hinges:
So today I went back with these hinges:
And had a much, much easier and more satisfying time:
The real beauty of it is, I know the next gate'll be even better.