Round up all income/expenses or just totals?

I have just gone through all my income/expenses and calculated all individual income/expenses including the pence without rounding to the nearest pound, e.g. £55.08 and NOT £55.

I have rounded off the total figures of income/expenses but after reading around I think I may need to recalculate all figures based on rounding up and down rather than just rounding the final amount?

I thought I was being super accurate and that would be a good thing!