Read the label and keep in mind they don't just kill different weeds, their action is different as well. Make sure you consider the crop you are planting next. There are even different forms of 24d that have different residual effects.
I'll give you an example of what I'm planning right now. I am having an issue with Marestail which laughs at gly. I planted some soybeans that were hit so hard by deer their food value is becoming quite small. Normally I surface broadcast a cover crop into the standing beans when they yellow, but instead, I'm gong to take this opportunity to deal with the weed of some of the bean fields and I'll let deer use what is left in the others for the rest of summer.
Tomorrow I plan to spray 24-D Amine. It has a soil residual effect unlike glyphosate. After it has had a week to do its thing, I'm going to do some minimal tillage. I'll use a tiller and set it so high it is chewing up vegetation but only hits the top inch or less of soil. Just enough to break any crust. My hope is the 24-D Amine kills the marestail so it does not regenerate from the roots. About 2 weeks after that (3 weeks after spraying the 24-D Amine), I'll plant. I'll surface broadcast my cover crop mix (WR, CC, and Turnips) and then spray with glyphosate. That 2 weeks after the light tillage should give any new weeds time to start growing. They will be young, tender, and very susceptible to gly.
This is not to say you can't tank mix. It all depends on your situation and what you are trying to accomplish. Spraying gly at the last minute gives my cover crop a better advantage over weeds rather than giving the weeds a head-start. Spraying 24-D Amine early gives time for the soil effects to diminish prior to planting.
Thanks,
Jack