-good luck!
-If you are freezing stuff in pans (so they hold their shape-ie lasagne) you'll want to line them with something-parchement paper or something so they pop out once they are hard frozen
-make sure you have the right amounts. I once substituted tsp for dashes and ended up with really spicy chicken casserole! A friend LOVED it though, lol. The kids, not so much!
-make sure you have enough room cleared out in your freezer
-label your bags before you put the food into it (once they have warm food in them the marker doesn't work as well)
-have one set of measuring stuff for wet and one for dry and just rinse the wet set as needed. I put them on a plate in between times (especially for measuring spoons). That will save you a lot of dishes.
-keep a sink of soapy water so you can wash and go
-It looks overwhelming but really I think this method is so much easier than any other cooking and really feels rewarding. But plan on cooking a meal of it for supper or ordering pizza. You will not want to cook tonight!