There are all kinds of kitchen gadgets that promise to save time while cooking meals. The microwave oven is probably the best example of technology making our meals significantly faster to prepare, but there are plenty of other cooking methods that are catching on in more and more kitchens (induction cooking, slow cookers, etc). Here are just a few more examples that might clutter your countertops.
If you'd like to read more awesome and interesting stuff, check out this unrelated (but not entirely random!) Techdirt post