Bike specific tools are needed wherever you go. when fixing and removing parts you could use hex wrenches, tire lever, pump, patch kit, . Some crank pullers and pedal wrenches are needed too. If you are good with budgeting you can get a lot of tools for $200 max. So next time you need to figure out what is clicking, you don't need to go to your LBS again, as long as you have specific tools.. keep safe.