What sort of arrangement are your tomato plants in? Assuming they're in a row (or rows) you might want to try using a "Florida weave" system (which would use less of the t-posts than staking each plant individually, and also requires less pruning of the plants than staking). Here's a link to one of many sites that describes how it works: http://extension.psu.edu/busin...
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer C/F temp conversion