55 hours for one business, right?
After all, this is what I like to do...no sense curtailing enjoyment.
If I had to, the first thing I'd do is raise prices. Second thing is open up the budget a little on marketing, but do a better job on screening the potential clients that result from the marketing.
I wouldn't do much to the employee setup; 10% is not that much of a jump, and making drastic changes there could put the short term goal in jeopardy. Keep them there, keep them relatively happy.
As for having to do that year after year, I dunno. At some point you will have maximized the production potential of the people on board and hit the maximum price the market will bear. The only way to make the next incremental increase is to take the leap, invest in more equipment and manpower...problem is, they have to be extremely productive in year one, paying for at least the amortization of the new equipment that year, plus their own salaries, plus the additional marketing expense, etc.
I guess I'd have a three year plan for finding Joe Black in a dark alley and taking care of business that way.
Increasing 10% per year under the threat of death would provide me with more motivation to tweak what we already do; too risky to try to make a bigger jump than that - make a mistake and >poof< You're an

. Or not

.