I feed most of my frogs one a week, more if they seem to need it. I also keep the enclosures as simple as possible, plastic plants, paper town or sphagnum substrates. I use a lot of plastic "critter keepers", a few glass aquariums, and some Rubbermaid boxes.
I find treefrogs (the biggest groups of frogs I keep) need good ventilation, so no Rubbermaid boxes or glass tops for them. Most of the treefrogs are kept on paper towels, with a few exceptions on sphagnum. Once a day all "open air" enclosures are sprayed down with distilled water.
I keep the fire-bellied toad in Rubbermaid boxes with water about two inches deep. There are plastic plants and foam trays to rest on. I feed them outside their enclosures, crickets drown too easily.
Terrestrail frogs are kept on sphagnum. So this would be all my Bufonids, dart frogs, and Microhylids. Salamanders are also kept this way.

Here is the complete list of my amphibians
1 Ambystoma tigrinum mavortium, barred tiger salamander
1 Ambystoma tigrinum melanostictum, blotched tiger salamander
2 Tylototriton shanjing, emperor newt

5 Bombina orientalis, fire-bellied toad
1 Ollotis alvaria , Colorado River toad
1 Anaxyrus debilis insidior, western green toad (my avatar)
3 Dendrobates tinctorius, dyeing poison dart frog (two azureus, one cobalt)
2 Dendropsophus leucophyllatus, clown treefrog
1 Hyla cinerea, green treefrog
2 Litoria caerulea, White's treefrog
4 Agalychnis callidryas, red-eyed leaf frog
1 Phyllomedusa hypochondrialis, tiger-legged monkey frog
1 Leptopelis sp., big-eyed treefrog
3 Dyscophus guineti, false tomato frog
1 Phrynomantis bifasciatus, red-banded rubber frog