Can I mend it myself? Plumbing.
When it comes to professional repairs done by specialists, you often wonder - "ha, I could do that myself, but now I need to pay anyway...". It is common enough way of thinking, but is it really true?
Experts in their fields make it look like it is easy, but only because they have years of experience. Because of it, they were able to deduce what the problem is quickly, and if it is easy to fix, they make it look like it's nothing. It may escape your attention, but they more often than not, use special tools when doing so.
Simple wrench and hammer are common household items, but what about thread seal tape? Or do you really want to buy whole package od putty, just to seal one small hole? These are the things that seperate experts in their fields from weekend handyman. Other than that, they are also the reasons why you call in a real plumber, once in a while.
Historically about the plumbers by Wikipedia
Quick look in to the history of the plumbers, thanks to Wikipedia:
The word "plumber" dates from the Roman Empire. The Latin for lead is plumbum. Roman roofs used lead in conduits and drain pipes and some were also covered with lead, lead was also used for piping and for making baths. In medieval times anyone who worked with lead was referred to as a plumber as can be seen from an extract of workmen fixing a roof in Westminster Palace and were referred to as plumbers "To Gilbert de Westminster, plumber, working about the roof of the pantry of the little hall, covering it with lead, and about various defects in the roof of the little hall". Thus a person with expertise in working with lead was first known as a Plumbarius which was later shortened to plumber.
Drain isn't draining
Even though we landed on the moon and are able to comunicate freely across the globe in real time, we still are sometimes stumped by mundane things like clogged pipes - what do we do then, in our hi-tech, modern times?
The same thing as always - call in the plumber. There maybe quicker and cheaper solutions, of course - but unless you are sure that drain cleaner isn't going to melt your pipes, or actually just do what it is supposed to, it is better to leave it to professionals.
There are some things, in the pipes, that you don't want to see - trust me on that. Besides, expert plumber can always recommend what to do, to avoid this kind of situation, and which products to use if need be.
Other than that, it usually takes something more sophisticated than a plunger, to get rid of the clog - if you even have that to begin with. So don't fret, or take this as an insult to your aptitude, and contact with plumbing services.