Here’s a tip that you will thank me for if you aren’t already doing it. When you want to secure the lid on a paint, stain or finish can, step on it rather than hammer it closed. Using your body weight to close the can has two advantages.
First, you don’t have to have a hammer handy. Your foot is always with you.
Second, and more importantly, you don’t risk squirting paint or finish all over you and other objects when there is overspill in the recessed lip at the top of the can.