You don't need to spend any money buying a power supply. A discarded 3.5amp 21V brick laptop power supply would be just fine. Add LM317 or 78L05/7805 regulators with a trim pot to set the voltage wanted right on the center of of your attention, the breadboard.
All you then need is a small heat sink for your LM317 to wear if you are drawing any big power on your experiments.
An old discarded PC's ATX power supply is a good source of small and large heat sinks, but they can also be found in almost any discarded electronic home equipment and salvaged.
BTW. a discarded PC ATX power supply can also be used as a bench supply, plenty of info on this on this board and youtube.
A magnifier-glass-lamp is very useful for work on small circuits, but it serves another important safety purpose, it protects your eyes and lungs from solder fumes and possible eye injuries.