I follow up with the ones that seemed interested right from the start. You'll know the vibe. Usually wait about a week and just call saying hey I'm just doing a follow up call, seeing if you're still interested. Most are and are just to lazy to call you first even though it's work they want done!
2011 f350 crew cab short box
1999 K3500 6.5
Stihl wackers/hedge trimmers
Little Wonder Vac/Walk behind blower