Heart of America Locksmith can help with your padlock needs. Yes you can get a cheap one anywhere. If a solid padlock is needed then the better option would be to get a commercial padlock. Sometimes those are bulky and do not fit the application needed. All of our padlocks are top of the line and we can get the correct padlock for you.
There is one thing we can do that no lock at the hardware store will do. We can match your home or office key. If you would like to keep your key ring as small as possible, using a key you already have would be ideal. Matching the key way to an existing high use key you have with the padlock. Even if the padlock is something you may or may not use on a regular basis.
If a separate key is what you are looking for, then there are plenty of options to choose from. Instead of a typical key for home/office or small key that come with padlocks, you can get a specialized key. A specialized key would be a key that looks weird to most but would separate from any key you would carry on yourself.