This may be a tip that many of you already use, but it works so well that I'm sharing it for anyone who hasn't tried it.
When making cookies, use a small melon scooper to scoop the dough onto the cookie sheet. The one I use is from Pampered Chef, but they are all about the same size. It makes it easy to scoop the dough and the cookies turn out nicely shaped and uniformly sized.
For cupcakes or muffins, a large melon scooper is just the right size to fill the muffin tin. It's easier and doesn't drip like other spoons do.
For more tips, visit Kristen at We are THAT Family.