My dad told me I was using the wrong kind of sandpaper for my furniture project
Honestly, I was refinishing an oak table last month and just grabbing whatever grit I had on hand. He came over, watched for a minute, and said, 'You're jumping from 80 to 220? You're skipping all the middle steps, that's why it looks streaky.' I felt pretty dumb. I went back, did the full progression with 80, 120, 150, then 220, and the finish came out perfectly smooth. Anyone else have a simple tip that fixed a project you were messing up?