In reply to Removed UserGRUMPY MONKEY:
Hope the following is useful.
You will be lucky to find cheap self catering, there are few towns, (Lee Vining is a one horse town, Mammoth Lakes isn't that big and is a bit of a trek, you would tire of the drive pretty quickly). The area is a major tourist draw and the demand for accommodation far exceeds supply so prices are high. There are some cabins not far from the Tuolumne entrance to YNP, They are at a place called Tioga Pass Resort, don't be put off by the word resort - the place is some log cabins and a bar/restaurant, I am afraid that I have no idea of prices. You may be able to rent a static caravan in Lee Vining, some posts give the site staff bad press, they were fine with us when we used their showers and laundry. If you are in or passing through you should try eating at the whoanelliedeli restaurant at the mobile petrol station at the bottom of the Tioga Pass road.
A good option could be camping (we camped for a month using various sites, the weather is so good that even i enjoyed the camping) or hiring an RV (as they are called over there). Camping in YNP is in short supply and very regulated, however once you have left Tuolumne (YNP) at the Tioga Pass you enter the Inyo National Forest which has many Walk-On campsites and RV camping sites (look at their website under Mono Lake Ranger Area. Saddlebag and Tioga Lakes are closest to Tuolumne (near Tioga Pass Resort), you can also camp at these sites. The Forest Service campsites at Junction and Ellery Lake are also very convenient (all those named are also convenient for Mt Conness (West Ridge looks superb). The Forest Service also have lots of camping and RV sites between Lee Vining and Mammoth Lakes ( if you go to Mamm other Lakes the N Arete of Crystal Crag is very good), Ino National Forest also manage the Mt Whitney permit allocation. The park authorities seem to like online bookings for many sites and access, research early to avoid disappointment! Take some mosquito repellent!
All the sites and car parks have bear boxes, see the yosemite black bear safety guidance (and the YouTube video showing bears trashing vehicles. If you break the guidelines for storage of items that might attract a bear you might get you transport trashed and/or a big fine (up to $5000!).
I haven' been to Tahoe so can'take give you any thoughts on accommodation thereabouts.