Not all household problems require a professional handyman. Here are some simple DIY fixes for common issues:
Squeaky doors: Spray a little bit of lubricant, such as WD-40, on the hinges to stop the squeaking.
Loose doorknob: If your doorknob is loose, remove the screws holding it in place and wrap a small piece of thread around the screw threads before reattaching them. This will create a tighter fit.
Sticking windows: Rub a candle along the window tracks to help them slide more easily.
Clogged showerhead: Soak the showerhead in vinegar for an hour to dissolve any mineral buildup.