You don't have to use the same tactic(s) every time. Variety is spicy, and different circumstances will demand different responses.
But every time, you should consider what happens when the party rests, and how the enemies act during that rest.
Else there is no real long-term challenge.
Variety is spicy but it can be noticeably boring.
In the past, I had a DM that used various excuses to continue. Never the same one but it felt inorganic when you ALWAYS ran into a complication. Guaranteed events that force continuing on.
It was always...
A kidnapped and soon sacrificed spouse, child, or siblin
A dying ill person depending on a far way cure
An imminent attack of ugly humaniod
A surprise attack while asleep
Convenient Anti magic
Eventually we talked it out and agreed not to "nova and rest" (not like we ever really did, it was always preemptive attempts to stop us from thinking about doing it).
If the gams allows short work days, then the only ways to combat it is to agree not to have them, inorganically and constantly create various excuses why the PCs can't rest, or add rules that disallow short work days. This is a fact.
It is better not to allow or encourage short work days from the start.