wall paint on ceiling- oops

I just painted my home office using a flat interior paint on textured walls (not exactly orange peel... not sure what it is called but it is about that 'bumpy'). I taped the trim and windows (this is my first time painting so wanted to be safe) but did not tape the ceiling (I know... what was I thinking). I was not planning to paint the ceiling but due to my terrible cut-in job I obviously need to now. So now my questions is how to paint the ceiling edges without messing up the now freshly painted walls? The ceiling is absolutely smooth and I will be buying a better cut in brush for that job but my skills are not enough to do it straight. I can tape the top of the walls but not sure it will work due to the texture of the walls. Any suggestions?
Any recommendations for a decent brush for cutting in? I found this: Amazon.com: Purdy Corporation 080225 2-1\2 2-1/2-Inch Nylox Dale Angle Paint Brush: Home Improvement

 

Welcome to the forums!

Purdy makes a lot of fine brushes. The 2.5 sash brush would be a good choice. It should be available at most any paint store. I think purdy brushes are also sold at one of the big box stores.

IMO you are almost always better off not using tape. Tape can give a false sense of security with paint seeping under it just one of the issues that can arise. It might be helpfull to use a shield to keep the ceiling paint off of the wall. Even something as small as a 6" broad knife will work.

Depending on the paint used and the condition of the ceiling - it may or may not touch up.

 

Yes, I am starting to see the illusion of safety that the tape gives.... I started off (when I was doing the wall) trying an edging tool Amazon.com: Shur-Line #00100 Paint Edger: Home Improvement
but quickly gave it up when paint ended up on the ceiling. I do think it would have done a better job that I did but either way i would still be here asking how to paint a ceiling after a wall.
Thanks for the broad knife idea, I will give it a try. I think I will try touching up the ceiling but since I did not paint it originally I just have to hope that 'ceiling paint' will match what the previous homeowner used.
So much to learn!
thanks!

 

Touching up older paint on a ceiling is always iffy - even if you have the right paint. There are probably a 100 different shades of white
but white touch up that shows a little is bound to not be as offensive as the wall color on the ceiling

 

My handyman showed me a trick that has worked pretty well for me...

Use the square edge of a "painter's tool". (Also known as a 8-in-1, or 10-in-1, etc. tool) to score a line in the corner. The bristles ride in the groove, and this helps you to keep a straight line.

That said, if you really go off track, of course the bristles will jump out of the groove. My own cut-ins need work, but I prefer a crooked edge over an edge caused by leaking tape.

SirWired