Essential tools every DIYer must have:
Drill
Level
Tape Measure
Clamps (lots of clamps)
Hammer + Mallet
Table Saw
Stud Finder (with voltage detection)
Nail Gun
Wood Glue
Paint + Stain Brushes (yes, they are different)
Contractor's Pencil
Screw Drivers of various sizes + types
Hex/Allen keys
Channel Locks
T-Square
Drywall Knife (rigid + flexible)
Great workshops to check out for some good hands-on learning:
Family Handyman DIY University
Check us out at Wilson & Sons Inspection and Testing