I’m with Julianne on this one Victoria.
I’ve looked at various project management tools in the past, but I like straight forward spreadsheets.
It’s easy to add in (or take out!) tasks as you go and re-use the basic template again and again.
As well as “owner” if there are various “stages” to an event/project, I’ll have columns for that as well so that I can sort by each stage in the process. I organise an Award programme that includes eg Launch Event, Applications, Judging, Award Dinner. I also have a column for “notes” and a final one with links to standard letters, etc.
If I go under a bus, in theory someone else can pick this up and get on with it!
Hope it all goes well!