My walking got me into picture frame making.
When out in the mountains the photography bit can be easy, because it's often more difficult to take a bad picture as the scenery is so stunning, but to frame your photographs so that you can hang them costs the earth.
I therefore went to the local bookshop, bought a book on frame making and have since made my own. The first couple of frames more than pay for the equipment you need and it's not exactly an arduous job. I now reckon it costs me about £10 a frame as opposed to about £50 ready made at the local shop. The glass is the expensive bit. Getting enlarged photographs is so cheap these days (from digital images that is).
I know you can get cheap, ready made frames for about the same cost, but in my opinion they lack a professional look.
S