Airline tickets
I always tell people to get a travel credit card. I perfer American Express. I use the card as much as possible and use the miles for all your flights. Never book airfare with the resorts, they give you bad travel times.
Book off peak if, possible
If you have flexibility, always book off peak, i.e., school season or hurricane season.
Travel mid week, if possible
Again, flexible is key if you have the possibility.
Save all you can for the next trip
Put money in a jar, just thinking that’s the next vacation you’re saving for.