TSP is easily found in the paint department at most home improvement places. They recommend its use to clean painted walls prior to painting. I really didn't like it for that, personally.
There's a Restor-A Finish product that works well. It's often at the antique stores. It's "color matched", and if memory serves, it has a very light solvent or stripper component to it which is supposed to help soften and blend with the old finish.
I also love the Howard products, also often found at the Antique stores. I use Feed'n'Wax on everything! LOL! Everything from abused wood cabinets, to FW tables to our wood floors.