I don't need anything fancy, it is not a matter of cost, just common sense. But what options are there for garage flooring. Slab foundation, old, some cracks.

We never park our car in the garage.
We use the garage for "extra" storage. It has the washer/dryer and central heating unit. We use the garage as extra storage, keep tools there, kinda of a work shop, my husband is "banished" there to smoke his pipe.

I see no reason to put anything in there seal the cracks with polyurethane caulk/sealer if they weep water or bugs.

around the workbench, a nice anti-fatigue mat would be great, and some old carpet car mats are very good for kneeling on while doing glue-ups, repairing power equipment, etc.

Corinne if there are large cracks I would try to seal them. A product that I have had good luck with is Sakrete crack filler.

http://www.sakrete.com/product...oncrete-Crack-Filler

Once the cracks are filled then you might consider something along these lines. Prices vary so I would check around. Some of the big box stores sell them. This was the best example to show you. Just google "interlocking garage tiles".

http://www.woodcraft.com/PRODU..._XsbUCFUVN4AodIj8AJA

I believer what is depicted will do roughly 22" X 10'

Good luck.

Garage flooring is more affordable than you probably think. Before you spend any money, be sure to look into a service that offers free in-home consultations to give you the chance to explore the options that best fit your home and garage space.