How often do you get to do a big project start to finish? I always have to allow time for unscheduled breaks. Always.
This can be difficult when painting a room. Not only is there a paint brush for doing the trim work, but you have a wet roller once you start the main area of the walls. Leave either the brush or the roller out for too long and both will start to solidify and be impossible to work with.
Here's a tip I learned from my mom when I first started painting.
Put a plastic bag around a wet roller when not in use, and plastic wrap around an idle paint brush.
Once the project/room is finished, then you can wash everything up one time. Much easier than washing everything up multiple times while working.
Here are links back to the other tips and tricks posts:
-Prepping Your Space
-Protect Your Throne