I always have trouble pressing a block with lots of seam intersections so that the seams are really flat. A hard ironing board and a heavy iron help, but I don't like steam. Lately, I've been trying this method, which I like, and I thought I'd pass it on. It will be familiar to anyone who has done lots of garment sewing, especially tailoring, but I've never heard it mentioned by quilters, and I never thought of it myself until recently.
Here's the basket block; see all the nasty intersections to make flat. There are more on the other side too.
Here's the tool I'm using. I don't know what this is called, but it's used to press seams open before they're pressed together, and it has all those weird curves and points to accommodate different seams. For quilting all you need is a long flat piece of wood; a 12 inch piece of 2 by 2 would work fine. Wood is the best because it is a good conductor of heat and pulls the heat out of the fabric quickly so that the seam cools in the position you want it to be.
All you do is press the seam together, then open the block and press the seam to the side, as usual. While the fabric is hot, put the wood piece on the seam, press down, and hold it for about 10 seconds or so.
You end up with a flat seam without worrying about scorching or puckering from steam. If you really want to use steam, give just a second of steam before you put the wood down.
(Do you think that woman needs cosmetic surgery on her hands? Yikes!)