I have a couple of sets of the low-end, inexpensive 'earmuff' type hearing protection.  One is a standard type and one (the set my wife picked out for her use) folds/collapses down.  The folding type is a little lighter and not as bulky and work just as well.  Both types work well but aren't the most comfortable things in the world.  They are a little bulky and kind of hot/a little sweaty in warm weather.  I use them when I will need to take off/put on my hearing protection a lot (as in outdoor shooting when there is also a good bit of conversing, etc. going on.)  When I am just shooting, I often use the 'squishy' foam earplugs (I like the Winchester brand that I can get at Walmart - a pack of several of them only cost a couple of bucks.)  You have to use those correctly - roll them between your fingers to compress the tapered end then insert them into your ears - but they work just fine, for me.  The advantage, there, is that they are lightweight and almost 'unnoticeable' to wear.

I have the Browning 30 dBA muffs that I bought a long time ago, but a buddy picked up the Midway USA clones and they're just as good - well worth the $22 he paid.  If outdoors, I'll wear just those; if indoors I'll add some generic foam plugs for further attenuation.  My ears are my job/life, so I don't screw with them...
 
For most people, the Midway muffs are plenty.

Ditto on the doubling up. I use cheap foam earplugs with a NRR of 30 under a cheap set of passive earmuffs. The plugs block most of the sound, but it is important to be protected from bone conducted sounds as well, so earmuffs are a must.

Check Lowes and Home Depot for ear protection.  They carry 26 - 28db sets (intended for industrial use) for much less than gun shops.

E·A·R® Model 1000 Ear Muff
$20.00 from the mfg site and 20db
Very comfortable IMHO

I haven't tried other brands, but the Harbor Freight electronic muffs work ok for me.  And you can talk without taking them off.
 
G2S

I've used industrial muffs for a long time.  They tend to be less expensive than those intended for shooting.  But lately I've become a fan of the cheap Winchester foam ear plugs they sell at Walmart.  Be sure to roll the tips before you push them in.  They spring back into place and fill the ear canal.  It also helps get them in if you reach over your head with the opposite hand and pull up on your ear to open the canal.