rather than just letting it sit in your account and if you're sure on no CDs. you might want to consider putting it into a high interest savings account, the rate is variable (as compared to a CD) but it will still earn something rather than be chipped away at by inflation. Vanguard offers a nice cash plus savings account.
you may already be doing this but just in case...
https://investor.vanguard.com/accounts-plans/vanguard-cash-plus-account
/unsolicited financial advice