Yes OP!
I love it. Wilko, Home Bargains and B&M are great for slightly more affordable foods!
I'm stingy and only buy the fat balls (10 for £1 in Wilko - always remember to cut them out of the nets), black sunflower seeds (80p B&M/ Home Bargains) and the fat mealworm squares and half coconut shells (2 for £1 in B&M!).
Oh and the no-mess bird seed from Wilko as I don't like germinating wheat under my bird feeders 
I refill the coconut shells with a mixture of seeds, oats and melted lard - set in the fridge overnight.
Mine seem to love all of the above! I avoid feeding on the ground due to having a cat/ neighbourhood cats.
I have a nyger seed feeder but didn't get any goldfinches last year 
I avoid peanuts as they're bad for young birds and can go mouldy and toxic in the feeder.
Jealous of those with parakeets! I'm suburban and struggle to attract birds but after a few months/years have blue tits, sparrows, robins, blackbirds, various other small tits and (greedy) starlings. Nothing very exciting but everything is in decline.
I had a spotted woodpecker last year which was incredible!
I'd encourage people to cover their fences in climbers as it provides good cover for garden birds and encourages insects. Pyracantha is great as a burglar deterrant and the birds love the berries in winter. I constantly have pigeons and blackbirds in all three of mine 
Climbing honeysuckle is evergreen and there are some good evergreen clematis and honeysuckle.