So, while I've learned to do a lot of home repair and remodel on my own (and I think I've improved quite a bit over the years), I've never laid ceramic tile. That's not true, I did it once about 6 years ago, but it wasn't my house, and we used the wrong kind of grout (should have used sanded grout)...so the project wasn't the greatest success. I'm a little older and wiser now, and we'd like to replace the entry hall flooring with tile. Currently, there is two layers of vinyl flooring and two layers of 1/4" underlayment. That will all come up (with some work), leaving the bare subfloor. Now, do I need to put down cement board, or just 1/4" underlayment (lauan)? I expect we'll have wet/snowy shoes from time to time, and this hall sees traffic every day from 2 adults and 1 crazy 2-year-old. Not sure if that makes a difference. I guess from there, we choose a thinset, get some trowels, and layout the center row of tiles, right? These will be large tiles (1 sq ft or larger), with a 3/8" gap...so we'll use sanded grout. Beyond that, what am I missing? Thanks!