The paints may be applied by brush or spray; the small spray attachment for vacuum cleaners is very convenient, especially for painting radiators.
Plastic sheathing and masking tape was not available at the end of the painting project for whatever reason, I have no idea, but you have a Paint Brush that if not cared for will eventually dry up. Last solution that works well, is to take a sopping wet rag, wrapping the Paint Brush up like that burrito you missed wrapping up earlier. This will buy you some time until either you use the paint brush again, or you can properly clean it.
Paying for a Brand Name Paint Color? If you are worried about ending up with an ugly paint color, you may be somewhat safer utilizing one of these designer collections. However, the color range offered by any one of these alternative brands is very limited and typically the whole line of hues is all neutralized to about the same tone. This gives the smaller brand a nice consistent look, but it doesn't allow for much variety. Also, these signature paints are typically more expensive (often 50% more) despite the fact that you can get very similar colors from the primary "mother" brand for considerably less money.
Fortunately, you can always get your primer tinted for free. Getting your primer colored the same as your paint will save you a coat of paint. Of course, I always recommend doing a minimum of 2 coats of paint so that your finish sheen looks consistent.
If paints have been allowed to stand and hard lumps or skin have formed, the skin or scum should be removed, after which the paint can be stirred and strained through screen wire or through one or two thicknesses of cheesecloth.
Alkyd has solid advantages overriding the slight cleanup in-convenience. It is exceptionally tough and very resistant to scrubbing. It stands up well in the trouble spots - trim, bathroom, kitchen. And it is easy to apply, producing a smooth, even finish free of streaks and brush marks.
Satin paints offer a good combination of easy-clean and moderate sheen. These paints go a step above eggshell in scrubbing ability. They perform and look great in just about any room.