Consolidating Email

I’m in the process of consolidating all my email messages onto one Gmail account and deleting messages that I don’t actually need. This is so I’ll only be checking less accounts when reading and searching for messages. My ultimate target is that I should be left with just three email accounts to check. One for personal, another one for professional/business stuff and one for online stuff. It will be tiring to organize everything but I think it’ll be worth it in the long run.