I worked on a crawfish farm (an LSU Ag facility) my first year at LSU then moved back to New Orleans over that first summer, returning to work at Wendy's and another burger joint called Rally's.
After my first exam in Modern Physics the next fall, the nuclear physicist who taught the course invited me to work in his laboratory and I was able to quit the job at the crawfish farm. I didn't mind the indoor work, but there were tons of snakes in the ponds, and I hated the snakes.
Some time later, after my first exam in Electricity and Magnetism, the atomic physicist who taught the course invited me to work in his laser spectroscopy lab. After talking it over with the nuclear physicist, I accepted the offer. My programming skills were not yet up to par to fit the experimental data to spherical harmonics, but I came up to speed quickly on operating the lasers and maintaining the ultra high vacuum systems. My main project was developing a new technique to generate the 9th harmonic of a Nd YAG laser.
About a year later, my heart was broken when the atomic physicist took a job at Brookhaven National Laboratory (Chem Dept). But a grad student buddy of mine put in a good word for me with his adviser (a theoretical astrophysicist), and next thing I knew I was cleaning up code for computing thermal cyclotron absorption coefficients. I slung the code, the grad student ran it with the range of parameters, and the prof oversaw the work and checked the validity of the process.
Then the atomic physicist invited me to apply for a summer internship at BNL over the summer after my Junior year. I ended up spending the following spring of my Senior year and following summer working in his atomic physics lab at BNL also. I cobbled together the courses I needed to graduate through a couple distance learning courses, a course at SUNY-Stony Brook, and double dipping allowing my research to count for a couple special projects type courses back at LSU. My main project related to coherent dephasing of quantum beats in Ar-OH, but I slung code for the data acquisition systems and maintained vacuum systems and lasers for various projects as well as helping out the grad students with "all hands on deck" data collection opportunities (running the experiments for their thesis projects). Good times!