Ceiling - for the crack, get a tub of pre-made filler like Polyfilla or Toupret. I prefer Toupret. Apply, sand down with 120grit or finer sandpaper. 60 is the roughest and you can go as as high 400 I think for the finest. You can use the sheets and a sanding block or get yourself a small orbital sander - There are some inexpensive Bosch ones out there.
Use the same filler for any wall dents as well, again sand it down afterwards.
If the staining on the celling is bad, you will need to use a primer. I recommend getting Zinsser BIN for this and it’s also perfect for covering up knots in your doorframes or preparing your woodwork before painting.
For any chunks taken out of your woodwork, use a tub of pre made wood filler (use white or natural), sand it down afterwards and go over with a primer. We use Ronseal.
Bannister - stripping it is a dirty job and can be quite frustrating. You can buy a stripper you apply with a brush or the one that comes in sheets. Use old rags and hot water to clean it up and then give it a light sand to finish it off. OR consider it giving it a hard sand, followed by a fine sand and painting it instead. Spindles, just paint them with a super mini roller and a brush.
A word of warning about painting your woodwork, if your current paint is oil based, new water based paint will adhere poorly and will peel. This is where Zinsser BIN can come in handy. One coat and you’re good to go with your water based paint.
Stairs - remove old caulk and apply new. You will need a caulk gun and a tub of caulk. If the gap between stairs and the wall is big, you can use a bit of expanding foam and then cut away the excess with a box cutter. Or you can cover up that gap with some nice beading and then just caulk between the beading and the wall. If adding beading you will need a tool for cutting the strips,
you can get the shears or the box with the saw.
Prep everything first - fill using a filling knife (get yourself a small and a big one), sand, wash everything with sugarsoap (sponge or cloths).
Undercoat - prime what needs to be primed. Depending on your chosen colours, you might need an undercoat of paint eg you’re going from super dark walls to very light and neutral.
Paint your ceilings first. Use a 9inch short pile roller with an extension pole and an angled brush to cut in. 2 coats of emulsion. Get yourself a pack of those plastic dust sheets to cover up carpets and floor. A tub of wet wipes is also handy for cleaning up any small spills and splatters.
Then do your woodwork, but don’t forget to put tape on the floor. I like to use low tack tape. 2 coats of eggshell, you can go quite flat or shiny, up to you.
Finally, the walls, tape up everything you don’t to get paint on, dust sheets down and 2 coats with the roller and brush for cutting in. Having a small roller is also handy as you can get in behind rads and small spaces.
Your prep will take the longest so if you can get through that, the painting part is super easy.