I bought a cheap router at a flea market and thought it would be good to do some shop shelves as a learner project. These are the rails for the shelves that slot into the legs with lap joints. I was going to drop some 2*4 spreaders in to the top and cut the grooves on the wrong goddamn face and now I have to redo them, and of course, don't have the material so I have to go to the fucking hardware store now
Diy rule of thumb, take the time estimate for completing a project and multiply it by 3... Or 12 lol
And materials budget for that matter
Always have an extra amount for material lost and unexpected expenses. You can never prepare for situations out of your control so the budget always needs to reflect that.