Proper procedure for changing tire/tube?
I have a simple question about procedures in changing the tube from a tire. I have finally experienced a flat tire from my road bike, and took it home to investigate on the cause of the flat. I end up finding a small (1mm) hole at the tube. I decided to use the patch I bought to try to patch up the hole. It was a success for mounting the tire on to the rim, but I found flat from another hole. I think when I dis-mount the tire or mount the tire back on, I somehow ribbed the tube.
My question is what is the procedure of changing tire? I have done it 3 times yesterday, and I ribbed holes two times. I also wondered is there any difference between tubes out there? If I want to look for a durable tube, what should I look into?
Can I expect using the patch to last a long time? Or is it a temporary fix of the tube?