Build a compact toolkit
€138 · 2 hrsGet a cordless drill/driver, a full hex bit set, a rubber mallet and two levels. You genuinely do not need anything more expensive than this to start.
Done when You own a cordless drill, full hex bit set, rubber mallet and two levels, and have test-assembled at least one flat-pack piece with them.
Watch out: Don't buy a fancy impact driver yet — standard torque settings avoid stripped screws on cheap particleboard.