Winners is great and the place for shopping here's what I find here:
For men: undies, socks, pyjamas, slippers, scarves, hats and jogging pants
Women: socks, underwear, shoes.boots,slippers,outdoor coats, yoga and work out clothes,bathing suits
Children: here you can get just about anything, but the kid's toy section is actually a really good place to buy toys and books
Home: Ralph Lauren bedsheets sets (or others just make sure you keep it over 300 thread count), decorative bathroom linens and accessories, again mostly just the decorative stuff. Lots of kitchen instruments and cook wear at great prices.
Decorative mirrors and wall hanging's home section is a great place to get any housewarming gifts you may need,
and last but not least I love shopping here for hair care and beauty products, which can be assembled to provide a great gift to someone, at any budget. (your 20$ exchange gift will go further here)