I've been using toodledo for about a month and just signed up for Pro account also. I'm backing up weekly using the backup tool. I just noticed that under the restore section it says the file size limit is 4MB. That seems really small considering my backup file is already 1MB after just a month.
Am I missing something here? I'd guess I'll go over that 4MB size within 3 or 4 months and then the backup tool will be of little use to me...?
I have about 2000 completed and uncompleted; excluding notes they use up 1.2MB in the xml backup. Of that 2000, 1600 are completed. Once a year, I use the csv export feature (via Tools), and then the "Delete Old Completed Tasks" (via Settings) to keep my backup file size down.