Mars in the 1st house could give you more energy to get work done and finish projects, however, you could also have more trouble maintaining relationships because you are ready to dispute any statement or start a dispute. It would be important to stay balanced and use the Virgo and Taurus planets to stay grounded.
Mars in the 2nd house will bring financial matters to the forefront. The ego, values, and beliefs could become pivotal. The desire to have more possessions will become important. Keeping wasteful spending down is important.
Mars in the 3rd house can be a positive energy for working with the collective to accomplish a project. The only problem could be with neighbors or siblings. Sometimes this can manifest as car troubles if your vehicle needs repairs.