Final answer:
The most logical thing for Solo to do is save the records to a computer file for easy retrieval and revision.
Step-by-step explanation:
The most logical thing for Solo to do with her tax returns, her will, and her budget in order to quickly retrieve these records for review and revision is to save them to a computer file. This option allows Solo to easily access and make changes to the records whenever needed. Storing them in a paid storage facility or safe deposit box might provide physical security, but retrieving and revising the records would be more time-consuming.