Don't increase too fast or you will burn out. I think that it's much better to have a realistic plan and stick to it and then achieve it and then create another realistic plan and achieve that and over the long term you will be constantly moving in the right direction and not zig-zaging up and down.
If everyone here put on 5lb on their 250lb bench EVERY OTHER week for a year then they'd be doing 375lb! It will not happen (unless in rare highly drug assited situations).
I like to advance slowly like this (purely example poundages):
SQUAT PROGRESSION:
week 1:
3 sets x 5 reps @ 250lbs
week 2:
3 sets x 6 reps @ 250lbs
week 3:
3 x 7 @ 250
weeks 4:
3 x 8 @ 250
week 5:
3 x 5 @ 270
week 6:
3 x 6 @ 270
week 7:
3 x 7 @ 270
week 8:
3 x 8 @ 270
week 9:
3 x 5 @ 290, etc....
This slow but sure progression will work if started with a weight that is easy., ie 250 x 5 is done when you are capable of doing 3 x 7 x 250 for example.