"here's a tip: get a better job"
I moved in July from Alexandria to Roanoke (240 miles, I packed everything). I didn't tip them (bill was almost $1,700). Should I have? I didn't even think about it until now.
Whatever you're thinking of tipping them, double it if they do a good job. It would be rare to regret being generous. Especially to any who've given you good service.