The first step will be to remove all the hardware from the cabinet doors and drawer fronts. Any other attached hardware, to the cabinet also has to be removed. In case you are protecting your countertops, now is the time to cover them with plastic sheeting and rosin paper.
Using your TSP and degreaser, clean up all areas of your cabinet doors, drawer fronts and cabinet boxes. Wear gloves in case you do not need chemicals spreading over your hands.
In case your cabinet has dings, and you are planning to replace the hardware with something different, get all the divots and holes, filled in with wood putty. The next step would be to sand your cabinets using a 100 grit sandpaper, going with the grain. The surface must all be roughened up.
Clean up all the sawdust needed.
Wipe off all sawdust, getting a tack cloth. The surface should be as clean and dust free as possible. Adequate prepping taking all the time is the key to the final job.
The next step is to get the primer coated. Start doing this from the inner panel. The first step is to go against the grain, thereby going with it. The grain will thus be filled and the surface will be smooth. Let the primer to sit. Meanwhile you can prime the cabinet boxes.
After the first coat of the primer settles down, it is time to sand it all over again. Take a sandpaper and brush away all the strokes or uneven primer on the surface. Taking the time is the key to the best means of prepping the surface best.
Now clean off all the sawdust all over again.
Clean the surface all over again, ensuring everything is completely wiped down by the tack cloth. All remaining sawdust must be adequately cleaned off.
The next step is to apply 2-3 coats of primer all over again, sanding all of it in between and thereby once more before the actual painting job. Basically, follow up steps 6-9 all over again. And keep in mind the facts about surface prepping.
Finally paint your cabinet. Using an angled brush, start off on the back panels, GOING BY THE GRAIN. Paint on the one side and only after it is completely dry, that you should flip over and paint on the other side. The cabinet boxes also will follow the same technique.
After a day or two you can reattach them to the cabinet, and install the hardware.