There are always things that need doing, so unless you have an endless budget, you just prioritise they most urgent ones.
The 'big' things include damp work, windows, roofs, boilers, which can cost a couple of thousand pound each, but you wouldn't do these things every year.
Quite often, it's a case of ' if it ain't broken, don't try to fix it'. For example, We have old windows, which could do with upgrading. For now, they do what we need them to, and we have curtains to help with the drafts. Roofs can often be patched up, while you save. Boilers would need to be replaced, unless you can live without hot water.
Then there is the decorative and furnishing, which you have more control over, particularly if you can do some of the work yourself.