If your toolbox is in need of an upgrade, you have probably considered getting a nice wrench set. There are several different types of wrench sets available, but not all of them will offer what you need. Consider your hobbies and handyman needs before shelling a lot of money out on a set you may never use. Wrench sets can basically be divided into a few categories to help you find exactly what you are looking for every time.
If you just need a wrench set that will take care of most household fixes, then an adjustable wrench set will probably do the trick. You don't need more than a few adjustable wrenches in different sizes. These wrenches will adapt to fit most bolt sizes without weighing your toolbox down. Most adjustable wrenches don't lock, so you may have some trouble with extra tight bolts. If this is the case, you may find it worth the money to invest in some locking adjustable wrenches.