As a tile salesman I recommend these pieces of advice regarding tiles:
-- Order 10% more tile than you measure for
-- Get the tile asap, at least two weeks in advance - you need to make sure it is all there, not damaged by shipping, and looks the way you want it to - natural stone and porcelain can and will look at least a little different than the display pieces owing to dye lots (porcelain) and where the product was quarried (stone)
-- Keep some extra pieces! - The dye lots and quarried areas mentioned above are important if something happens, you will want to have replacement pieces on hand should something happen to what you have installed
-- If this is a remodel, have a professional check over the subfloor and behind the walls - a poor subfloor could cause the tile to crack and break in a short amount of time - water damage and mold could require a complete gutting of the damaged area
-- Keep it simple - Unless you are 110% certain that you want that bright yellow mixing with gray wood-look and calacutta marble, simple is better
-- In keeping it simple neutral and clean colors such as white, gray, or beige can then be accessorized with towels and decor plus you can replace the accessories for $5-$50 versus paying $600+ to replace the tiles
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