Here's my dilemma. I don't really get to practice my tennis game during the work week. What is the best way to improve my service game if I don't have a bucket of used tennis balls to hit serve after serve with (like I used to do in high school)? I haven't played tennis in some 22+ years. Currently, my serves usually going long (around the baseline or just inside it) or into the net. When my serves do land in, I don't feel like they're traveling with much pace to them.