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Browse credit cards from a variety of issuers to see if there's a better card for you.
Lowe's (Synchrony) is likely to give you the highest limit. Menards (Capital One) and Home Depot (Citi) offer cards from less wonky banks.
Purchase a Home Depot gift card from a grocery store and get 6% back, which is better than any of the other solutions.
BCP is only 6% on $6K a year. If the OP spends more than that annually then it may make sense to have something else as well.
